The 1966 United States House of Representatives elections was an election for the United States House of Representatives in 1966 which occurred in the middle of President of the United States, President Lyndon B. Johnson's second term. As the Vietnam War continued to escalate and race riots exploded in cities across the country, Johnson's popularity had fallen, and the opposition United States Republican Party, Republican Party was able to gain a net of 47 seats from Johnson's History of the Democratic Party (United States), Democratic Party, which nonetheless maintained a clear majority in the House. This was also the first election that occurred after the Voting Rights Act of 1965 became law.

Republican gains

* Alaska's at-large congressional district: four-term Democratic incumbent Ralph Julian Rivers was defeated by Republican State Senator Howard Wallace Pollock. * Arizona's 3rd congressional district: sophomore Democrat George F. Senner Jr. was defeated by state legislator Sam Steiger. * Arkansas's 3rd congressional district: lumber executive and Arkansas GOP chair John Paul Hammerschmidt defeated incumbent James William Trimble, becoming the first Republican member of Arkansas' congressional delegation since Reconstruction era of the United States, Reconstruction. * California's 18th congressional district: onetime Olympic gold medalist Robert B. Mathias defeated seven-term Democratic incumbent Harlan Hagen. * California's 25th congressional district: Charles E. Wiggins defeated incumbent Democrat Ronald B. Cameron. * California's 33rd congressional district: Jerry L. Pettis defeated incumbent Kenneth W. Dyal. * Texas's 7th congressional district: businessman and 1964 U.S. Senate candidate George H. W. Bush defeated Democratic challenger Frank Briscoe for the seat vacated by John V. Dowdy (whose district had been renumbered the Texas's 2nd congressional district, second). * Texas's 18th congressional district: Bob Price (Texas politician), Bob Price succeeded retiring Democrat Walter Edward Rogers by defeating Dee Miller.

Special elections

Elections are listed by date and district. , - ! , Herbert Covington Bonner , , Democratic , , , Incumbent died November 7, 1965.
New member elected February 5, 1966.
Democratic hold.
Successor was later re-elected, #North Carolina, see below. , nowrap , , - ! , John Lindsay , , Republican , , , Incumbent resigned December 31, 1965 to become Mayor of New York City.
New member elected February 8, 1966.
Republican hold.
Successor was later re-elected, #New York, see below. , nowrap , , - ! , Albert Thomas (American politician), Albert Thomas , , Democratic , , , Incumbent died February 15, 1966.
New member elected March 26, 1966.
Democratic hold.
Successor did not seek re-election in November, #Texas, see below. , nowrap , , - ! , John F. Baldwin Jr. , , Republican , , , Incumbent died March 9, 1966.
New member elected June 7, 1966.
Democratic gain.
Successor was later re-elected, #California, see below. , nowrap ,

Overall results

Source
Election Statistics – Office of the Clerk
¹ One vacancy due to refusal of House to seat Adam Clayton Powell Jr. (United States Democratic Party, D-New York (state), New York)

Alabama

, - ! , Jack Edwards (Alabama), Jack Edwards , , Republican , 1964 United States House of Representatives elections in Alabama, 1964 , Incumbent re-elected. , nowrap , , - ! , William Louis Dickinson , , Republican , 1964 United States House of Representatives elections in Alabama, 1964 , Incumbent re-elected. , nowrap , , - ! , George W. Andrews , , Democratic , 1944 United States House of Representatives elections in Alabama, 1944 , Incumbent re-elected. , nowrap , , - ! , Glenn Andrews , , Republican , 1964 United States House of Representatives elections in Alabama, 1964 , , Incumbent lost re-election.
New member elected.
Democratic gain. , nowrap , , - ! , Armistead I. Selden Jr. , , Democratic , 1952 United States House of Representatives elections in Alabama, 1952 , Incumbent re-elected. , nowrap , , - ! , John Hall Buchanan Jr. , , Republican , 1964 United States House of Representatives elections in Alabama, 1964 , Incumbent re-elected. , nowrap , , - ! , James D. Martin , , Republican , 1964 United States House of Representatives elections in Alabama, 1964 , , Incumbent retired to 1966 Alabama gubernatorial election, run for Governor of Alabama.
New member elected.
Democratic gain. , nowrap , , - ! , Robert E. Jones Jr. , , Democratic , 1947 Alabama's 8th congressional district special election, 1947 , Incumbent re-elected. , nowrap ,

Alaska

, - ! , Ralph Julian Rivers , , Democratic , 1958 United States House of Representatives election in Alaska, 1958 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Arizona

, - ! , John Jacob Rhodes , , Republican , 1952 United States House of Representatives elections in Arizona, 1952 , Incumbent re-elected. , nowrap , , - ! , Mo Udall , , Democratic , 1961 Arizona's 2nd congressional district special election, 1961 , Incumbent re-elected. , nowrap , , - ! , George F. Senner Jr. , , Democratic , 1962 United States House of Representatives elections in Arizona, 1962 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Arkansas

, - ! , Ezekiel C. Gathings , , Democratic , 1938 United States House of Representatives elections in Arkansas, 1938 , Incumbent re-elected. , nowrap , , - ! , Wilbur Mills , , Democratic , 1938 United States House of Representatives elections in Arkansas, 1938 , Incumbent re-elected. , nowrap , , - ! , James William Trimble , , Democratic , 1944 United States House of Representatives elections in Arkansas, 1944 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Oren Harris , , Democratic , 1940 United States House of Representatives elections in Arkansas, 1940 , , Resigned to become District judge.
New member elected.
Democratic hold. , nowrap ,

California

, - ! , Donald H. Clausen , , Republican , 1963 California's 1st congressional district special election, 1963 , Incumbent re-elected. , nowrap , , - ! , Harold T. Johnson , , Democratic , 1958 United States House of Representatives elections in California, 1958 , Incumbent re-elected. , nowrap , , - ! , John E. Moss , , Democratic , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Robert L. Leggett , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Phillip Burton , , Democratic , 1964 United States House of Representatives elections in California, 1964 , Incumbent re-elected. , nowrap , , - ! , William S. Mailliard , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Jeffery Cohelan , , Democratic , 1958 United States House of Representatives elections in California, 1958 , Incumbent re-elected. , nowrap , , - ! , George P. Miller , , Democratic , 1944 United States House of Representatives elections in California, 1944 , Incumbent re-elected. , nowrap , , - ! , Don Edwards , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Charles Gubser , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , J. Arthur Younger , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Burt L. Talcott , , Republican , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Charles M. Teague , , Republican , 1954 United States House of Representatives elections in California, 1954 , Incumbent re-elected. , nowrap , , - ! , Jerome Waldie , , Democratic , 1966 United States House of Representatives elections in California, 1966 , Incumbent re-elected. , nowrap , , - ! , John J. McFall , , Democratic , 1956 United States House of Representatives elections in California, 1956 , Incumbent re-elected. , nowrap , , - ! , B. F. Sisk , , Democratic , 1954 United States House of Representatives elections in California, 1954 , Incumbent re-elected. , nowrap , , - ! , Cecil R. King , , Democratic , 1942 United States House of Representatives elections in California, 1942 , Incumbent re-elected. , nowrap , , - ! , Harlan Hagen , , Democratic , 1952 United States House of Representatives elections in California, 1952 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Chet Holifield , , Democratic , 1942 United States House of Representatives elections in California, 1942 , Incumbent re-elected. , nowrap , , - ! , H. Allen Smith (California politician), H. Allen Smith , , Republican , 1956 United States House of Representatives elections in California, 1956 , Incumbent re-elected. , nowrap , , - ! , Augustus Hawkins , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , James C. Corman , , Democratic , 1960 United States House of Representatives elections in California, 1960 , Incumbent re-elected. , nowrap , , - ! , Del M. Clawson , , Republican , 1963 United States House of Representatives elections in California, 1963 , Incumbent re-elected. , nowrap , , - ! , Glenard P. Lipscomb , , Republican , 1953 United States House of Representatives elections in California, 1953 , Incumbent re-elected. , nowrap , , - ! , Ronald B. Cameron , , Democratic , 1962 United States House of Representatives elections in California, 1962 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Thomas M. Rees , , Democratic , 1965 United States House of Representatives elections in California, 1965 , Incumbent re-elected. , nowrap , , - ! , Edwin Reinecke , , Republican , 1964 United States House of Representatives elections in California, 1964 , Incumbent re-elected. , nowrap , , - ! , Alphonzo E. Bell Jr. , , Republican , 1960 United States House of Representatives elections in California, 1960 , Incumbent re-elected. , nowrap , , - ! , George Brown Jr. , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Edward R. Roybal , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Charles H. Wilson , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , Craig Hosmer , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Kenneth W. Dyal , , Democratic , 1964 United States House of Representatives elections in California, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Richard T. Hanna , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , James B. Utt , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Bob Wilson (politician), Bob Wilson , , Republican , 1952 United States House of Representatives elections in California, 1952 , Incumbent re-elected. , nowrap , , - ! , Lionel Van Deerlin , , Democratic , 1962 United States House of Representatives elections in California, 1962 , Incumbent re-elected. , nowrap , , - ! , John V. Tunney , , Democratic , 1964 United States House of Representatives elections in California, 1964 , Incumbent re-elected. , nowrap ,

Colorado

, - ! , Byron G. Rogers , , Democratic , 1950 United States House of Representatives elections in Colorado, 1950 , Incumbent re-elected. , nowrap , , - ! , Roy H. McVicker , , Democratic , 1964 United States House of Representatives elections in Colorado, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Frank Evans (politician), Frank Evans , , Democratic , 1964 United States House of Representatives elections in Colorado, 1964 , Incumbent re-elected. , nowrap , , - ! , Wayne N. Aspinall , , Democratic , 1948 United States House of Representatives elections in Colorado, 1948 , Incumbent re-elected. , nowrap ,

Connecticut

, - ! , Emilio Q. Daddario , , Democratic , 1958 United States House of Representatives elections in Connecticut, 1958 , Incumbent re-elected. , nowrap , , - ! , William St. Onge , , Democratic , 1962 United States House of Representatives elections in Connecticut, 1962 , Incumbent re-elected. , nowrap , , - ! , Robert Giaimo , , Democratic , 1958 United States House of Representatives elections in Connecticut, 1958 , Incumbent re-elected. , nowrap , , - ! , Donald J. Irwin , , Democratic , 1964 United States House of Representatives elections in Connecticut, 1964 , Incumbent re-elected. , nowrap , , - ! , John S. Monagan , , Democratic , 1958 United States House of Representatives elections in Connecticut, 1958 , Incumbent re-elected. , nowrap , , - ! , Bernard F. Grabowski , , Democratic , 1962 United States House of Representatives elections in Connecticut, 1962 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Delaware

, - ! , Harris McDowell , , Democratic , 1958 United States House of Representatives election in Delaware, 1958 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Florida

Florida redistricted to adjust for demographic changes; in addition to minor boundary changes a district was removed from northern Florida, and Broward County was broken out into its own district. , - ! , Bob Sikes , , Democratic , 1940 United States House of Representatives elections in Florida, 1940 , Incumbent re-elected. , nowrap , , - ! rowspan=2 , , Don Fuqua
, , Democratic , 1962 United States House of Representatives elections in Florida, 1962 , Incumbent re-elected. , rowspan=2 nowrap , , - , Donald Ray Matthews
, , Democratic , 1952 United States House of Representatives elections in Florida, 1952 , , Incumbent lost renomination.
Democratic loss. , - ! , Charles E. Bennett (politician), Charles E. Bennett
, , Democratic , 1948 United States House of Representatives elections in Florida, 1948 , Incumbent re-elected. , nowrap , , - ! , Syd Herlong
, , Democratic , 1948 United States House of Representatives elections in Florida, 1948 , Incumbent re-elected. , nowrap , , - ! , Edward Gurney
, , Republican , 1962 United States House of Representatives elections in Florida, 1962 , Incumbent re-elected. , nowrap , , - ! , Sam Gibbons
, , Democratic , 1962 United States House of Representatives elections in Florida, 1962 , Incumbent re-elected. , nowrap , , - ! , James A. Haley , , Democratic , 1952 United States House of Representatives elections in Florida, 1952 , Incumbent re-elected. , nowrap , , - ! , William C. Cramer
, , Republican , 1954 United States House of Representatives elections in Florida, 1954 , Incumbent re-elected. , nowrap , , - ! , Paul Rogers (politician), Paul Rogers
, , Democratic , 1954 United States House of Representatives elections in Florida, 1954 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Claude Pepper
, , Democratic , 1962 United States House of Representatives elections in Florida, 1962 , Incumbent re-elected. , nowrap , , - ! , Dante Fascell
, , Democratic , 1954 United States House of Representatives elections in Florida, 1954 , Incumbent re-elected. , nowrap ,

Georgia

, - ! , George Elliott Hagan , , Democratic , 1960 United States House of Representatives elections in Georgia, 1960 , Incumbent re-elected. , nowrap , , - ! , Maston E. O'Neal Jr. , , Democratic , 1964 United States House of Representatives elections in Georgia, 1964 , Incumbent re-elected. , nowrap , , - ! , Bo Callaway , , Republican , 1964 United States House of Representatives elections in Georgia, 1964 , , Incumbent retired to 1966 Georgia gubernatorial election, run for Governor of Georgia.
New member elected.
Democratic gain. , nowrap , , - ! , James MacKay (American politician), James MacKay , , Democratic , 1964 United States House of Representatives elections in Georgia, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Charles L. Weltner , , Democratic , 1962 United States House of Representatives elections in Georgia, 1962 , , Incumbent retired.
New member elected.
Republican gain. , nowrap , , - ! , John Flynt , , Democratic , 1954 United States House of Representatives elections in Georgia, 1954 , Incumbent re-elected. , nowrap , , - ! , John William Davis (Georgia politician), John William Davis , , Democratic , 1960 United States House of Representatives elections in Georgia, 1960 , Incumbent re-elected. , nowrap , , - ! , J. Russell Tuten , , Democratic , 1962 United States House of Representatives elections in Georgia, 1962 , , Incumbent lost renomination.
New member elected.
Democratic hold. , nowrap , , - ! , Phillip M. Landrum , , Democratic , 1952 United States House of Representatives elections in Georgia, 1952 , Incumbent re-elected. , nowrap , , - ! , Robert Grier Stephens Jr. , , Democratic , 1960 United States House of Representatives elections in Georgia, 1960 , Incumbent re-elected. , nowrap ,

Hawaii

, - ! , Spark Matsunaga , , Democratic , 1962 United States House of Representatives election in Hawaii, 1962 , Incumbent re-elected. , rowspan=2 nowrap , , - ! , Patsy Mink , , Democratic , 1964 United States House of Representatives election in Hawaii, 1964 , Incumbent re-elected.

Idaho

, - ! , Compton I. White Jr. , , Democratic , 1962 United States House of Representatives elections in Idaho, 1962 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , George V. Hansen , , Republican , 1964 United States House of Representatives elections in Idaho, 1964 , Incumbent re-elected. , nowrap ,

Illinois

, - ! , William L. Dawson (politician), William L. Dawson , , Democratic , 1942 United States House of Representatives elections in Illinois, 1942 , Incumbent re-elected. , nowrap , , - ! , Barratt O'Hara , , Democratic , 1952 United States House of Representatives elections in Illinois, 1952 , Incumbent re-elected. , nowrap , , - ! , William T. Murphy , , Democratic , 1958 United States House of Representatives elections in Illinois, 1958 , Incumbent re-elected. , nowrap , , - ! , Ed Derwinski , , Republican , 1958 United States House of Representatives elections in Illinois, 1958 , Incumbent re-elected. , nowrap , , - ! , John C. Kluczynski , , Democratic , 1950 United States House of Representatives elections in Illinois, 1950 , Incumbent re-elected. , nowrap , , - ! , Daniel J. Ronan , , Democratic , 1964 United States House of Representatives elections in Illinois, 1964 , Incumbent re-elected. , nowrap , , - ! , Frank Annunzio , , Democratic , 1964 United States House of Representatives elections in Illinois, 1964 , Incumbent re-elected. , nowrap , , - ! , Dan Rostenkowski , , Democratic , 1958 United States House of Representatives elections in Illinois, 1958 , Incumbent re-elected. , nowrap , , - ! , Sidney R. Yates , , Democratic , 1964 United States House of Representatives elections in Illinois, 1964 , Incumbent re-elected. , nowrap , , - ! , Harold R. Collier , , Republican , 1956 United States House of Representatives elections in Illinois, 1956 , Incumbent re-elected. , nowrap , , - ! , Roman Pucinski , , Democratic , 1958 United States House of Representatives elections in Illinois, 1958 , Incumbent re-elected. , nowrap , , - ! , Robert McClory , , Republican , 1962 United States House of Representatives elections in Illinois, 1962 , Incumbent re-elected. , nowrap , , - ! , Donald Rumsfeld , , Republican , 1962 United States House of Representatives elections in Illinois, 1962 , Incumbent re-elected. , nowrap , , - ! , John N. Erlenborn , , Republican , 1964 United States House of Representatives elections in Illinois, 1964 , Incumbent re-elected. , nowrap , , - ! , Charlotte Thompson Reid , , Republican , 1962 United States House of Representatives elections in Illinois, 1962 , Incumbent re-elected. , nowrap , , - ! , John B. Anderson , , Republican , 1960 United States House of Representatives elections in Illinois, 1960 , Incumbent re-elected. , nowrap , , - ! , Leslie C. Arends , , Republican , 1934 United States House of Representatives elections in Illinois, 1934 , Incumbent re-elected. , nowrap , , - ! , Robert H. Michel , , Republican , 1956 United States House of Representatives elections in Illinois, 1956 , Incumbent re-elected. , nowrap , , - ! , Gale Schisler , , Democratic , 1964 United States House of Representatives elections in Illinois, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Paul Findley , , Republican , 1960 United States House of Representatives elections in Illinois, 1960 , Incumbent re-elected. , nowrap , , - ! , Kenneth J. Gray , , Democratic , 1954 United States House of Representatives elections in Illinois, 1954 , Incumbent re-elected. , nowrap , , - ! , William L. Springer , , Republican , 1950 United States House of Representatives elections in Illinois, 1950 , Incumbent re-elected. , nowrap , , - ! , George E. Shipley , , Democratic , 1958 United States House of Representatives elections in Illinois, 1958 , Incumbent re-elected. , nowrap , , - ! , Melvin Price , , Democratic , 1944 United States House of Representatives elections in Illinois, 1944 , Incumbent re-elected. , nowrap ,

Indiana

Indiana redistricted for this election, election boundary changes forced two Republican incumbents into the same district while creating a new district that was won by another Republican. , - ! , Ray Madden , , Democratic , 1942 United States House of Representatives elections in Indiana, 1942 , Incumbent re-elected. , nowrap , , - ! , Charles A. Halleck , , Republican , 1935 United States House of Representatives elections in Indiana, 1935 , Incumbent re-elected. , nowrap , , - ! , John Brademas , , Democratic , 1958 United States House of Representatives elections in Indiana, 1958 , Incumbent re-elected. , nowrap , , - ! , E. Ross Adair , , Republican , 1950 United States House of Representatives elections in Indiana, 1950 , Incumbent re-elected. , nowrap , , - ! , J. Edward Roush , , Democratic , 1958 United States House of Representatives elections in Indiana, 1958 , Incumbent re-elected. , nowrap , , - ! , William G. Bray
, , Republican , 1950 United States House of Representatives elections in Indiana, 1950 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Winfield K. Denton , , Democratic , 1954 United States House of Representatives elections in Indiana, 1954 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Lee H. Hamilton , , Democratic , 1964 United States House of Representatives elections in Indiana, 1964 , Incumbent re-elected. , nowrap , , - ! rowspan=2 , , Richard L. Roudebush
, , Republican , 1960 United States House of Representatives elections in Indiana, 1960 , Incumbent re-elected. , rowspan=2 nowrap , , - , Ralph Harvey , , Republican , 1960 United States House of Representatives elections in Indiana, 1960 , , Incumbent lost renomination.
Republican loss. , - ! , Andrew Jacobs Jr. , , Democratic , 1964 United States House of Representatives elections in Indiana, 1964 , Incumbent re-elected. , nowrap ,

Iowa

, - ! , John R. Schmidhauser , , Democratic , 1964 United States House of Representatives elections in Iowa, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , John Culver , , Democratic , 1964 United States House of Representatives elections in Iowa, 1964 , Incumbent re-elected. , nowrap , , - ! , H. R. Gross , , Republican , 1948 United States House of Representatives elections in Iowa, 1948 , Incumbent re-elected. , nowrap , , - ! , Bert Bandstra , , Democratic , 1964 United States House of Representatives elections in Iowa, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Neal Edward Smith , , Democratic , 1958 United States House of Representatives elections in Iowa, 1958 , Incumbent re-elected. , nowrap , , - ! , Stanley L. Greigg , , Democratic , 1964 United States House of Representatives elections in Iowa, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , John R. Hansen , , Democratic , 1964 United States House of Representatives elections in Iowa, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Kansas

, - ! , Bob Dole , , Republican , 1960 United States House of Representatives elections in Kansas, 1960 , Incumbent re-elected. , nowrap , , - ! , Chester L. Mize , , Republican , 1964 United States House of Representatives elections in Kansas, 1964 , Incumbent re-elected. , nowrap , , - ! , Robert Ellsworth , , Republican , 1960 United States House of Representatives elections in Kansas, 1960 , , Incumbent retired to 1966 United States Senate election in Kansas, run for U.S. senator.
New member elected.
Republican hold. , nowrap , , - ! , Garner E. Shriver , , Republican , 1960 United States House of Representatives elections in Kansas, 1960 , Incumbent re-elected. , nowrap , , - ! , Joe Skubitz , , Republican , 1962 United States House of Representatives elections in Kansas, 1962 , Incumbent re-elected. , nowrap ,

Kentucky

, - ! , Frank Stubblefield , , Democratic , 1958 United States House of Representatives elections in Kentucky, 1958 , Incumbent re-elected. , nowrap , , - ! , William Natcher , , Democratic , 1953 Kentucky's 2nd congressional district special election, 1953 , Incumbent re-elected. , nowrap , , - ! , Charles R. Farnsley , , Democratic , 1964 United States House of Representatives elections in Kentucky, 1964 , , Incumbent retired.
New member elected.
Republican gain. , nowrap , , - ! , Frank Chelf , , Democratic , 1944 United States House of Representatives elections in Kentucky, 1944 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Tim Lee Carter , , Republican , 1964 United States House of Representatives elections in Kentucky, 1964 , Incumbent re-elected. , nowrap , , - ! , John C. Watts , , Democratic , 1951 Kentucky's 6th congressional district special election, 1951 , Incumbent re-elected. , nowrap , , - ! , Carl D. Perkins , , Democratic , 1948 United States House of Representatives elections in Kentucky, 1948 , Incumbent re-elected. , nowrap ,

Louisiana

, - ! , F. Edward Hébert , , Democratic , 1940 United States House of Representatives elections in Louisiana, 1940 , Incumbent re-elected. , nowrap , , - ! , Hale Boggs , , Democratic , 1946 United States House of Representatives elections in Louisiana, 1946 , Incumbent re-elected. , nowrap , , - ! , Edwin E. Willis , , Democratic , 1948 United States House of Representatives elections in Louisiana, 1948 , Incumbent re-elected. , nowrap , , - ! , Joe Waggonner , , Democratic , 1961 United States House of Representatives elections in Louisiana, 1961 , Incumbent re-elected. , nowrap , , - ! , Otto Passman , , Democratic , 1946 United States House of Representatives elections in Louisiana, 1946 , Incumbent re-elected. , nowrap , , - ! , James H. Morrison , , Democratic , 1942 United States House of Representatives elections in Louisiana, 1942 , , Incumbent lost renomination.
New member elected.
Democratic hold. , nowrap , , - ! , Edwin Edwards , , Democratic , 1965 United States House of Representatives elections in Louisiana, 1965 , Incumbent re-elected. , nowrap , , - ! , Speedy Long , , Democratic , 1964 United States House of Representatives elections in Louisiana, 1964 , Incumbent re-elected. , nowrap ,

Maine

, - ! , Stanley R. Tupper , , Republican , 1960 United States House of Representatives elections in Maine, 1960 , , Incumbent retired.
New member elected.
Democratic gain. , nowrap , , - ! , William Hathaway , , Democratic , 1964 United States House of Representatives elections in Maine, 1964 , Incumbent re-elected. , nowrap ,

Maryland

Maryland redistricted its at-large district into an 8th district around Montgomery County, managing to adjust boundaries so no existing incumbents were displaced. , - ! , Rogers Morton , , Republican , 1962 United States House of Representatives elections in Maryland, 1962 , Incumbent re-elected. , nowrap , , - ! , Clarence Long , , Democratic , 1962 United States House of Representatives elections in Maryland, 1962 , Incumbent re-elected. , nowrap , , - ! , Edward Garmatz , , Democratic , 1947 United States House of Representatives elections in Maryland, 1947 , Incumbent re-elected. , nowrap , , - ! , George Hyde Fallon , , Democratic , 1944 United States House of Representatives elections in Maryland, 1944 , Incumbent re-elected. , nowrap , , - ! , Hervey Machen , , Democratic , 1964 United States House of Representatives elections in Maryland, 1964 , Incumbent re-elected. , nowrap , , - ! , Charles Mathias , , Republican , 1960 United States House of Representatives elections in Maryland, 1960 , Incumbent re-elected. , nowrap , , - ! , Samuel Friedel , , Democratic , 1952 United States House of Representatives elections in Maryland, 1952 , Incumbent re-elected. , nowrap , , - ! , Carlton R. Sickles
, , Democratic , 1962 United States House of Representatives elections in Maryland, 1962 , , Incumbent retired to 1966 Maryland gubernatorial election, run for Governor of Maryland.
New member elected.
Republican gain. , nowrap ,

Massachusetts

, - ! , Silvio O. Conte , , Republican , 1958 United States House of Representatives elections in Massachusetts, 1958 , Incumbent re-elected. , nowrap , , - ! , Edward Boland , , Democratic , 1952 United States House of Representatives elections in Massachusetts, 1952 , Incumbent re-elected. , nowrap , , - ! , Philip J. Philbin , , Democratic , 1942 United States House of Representatives elections in Massachusetts, 1942 , Incumbent re-elected. , nowrap , , - ! , Harold Donohue , , Democratic , 1946 United States House of Representatives elections in Massachusetts, 1946 , Incumbent re-elected. , nowrap , , - ! , F. Bradford Morse , , Republican , 1960 United States House of Representatives elections in Massachusetts, 1960 , Incumbent re-elected. , nowrap , , - ! , William H. Bates , , Republican , 1950 United States House of Representatives elections in Massachusetts, 1950 , Incumbent re-elected. , nowrap , , - ! , Torbert Macdonald , , Democratic , 1954 United States House of Representatives elections in Massachusetts, 1954 , Incumbent re-elected. , nowrap , , - ! , Tip O'Neill , , Democratic , 1952 United States House of Representatives elections in Massachusetts, 1952 , Incumbent re-elected. , nowrap , , - ! , John W. McCormack , , Democratic , 1928 United States House of Representatives elections in Massachusetts, 1928 , Incumbent re-elected. , nowrap , , - ! , Joseph W. Martin Jr. , , Republican , 1924 United States House of Representatives elections in Massachusetts, 1924 , , Incumbent lost renomination.
New member elected.
Republican hold. , nowrap , , - ! , James A. Burke (Massachusetts politician), James A. Burke , , Democratic , 1958 United States House of Representatives elections in Massachusetts, 1958 , Incumbent re-elected. , nowrap , , - ! , Hastings Keith , , Republican , 1958 United States House of Representatives elections in Massachusetts, 1958 , Incumbent re-elected. , nowrap ,

Michigan

, - ! , John Conyers , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , Incumbent re-elected. , nowrap , , - ! , Weston E. Vivian , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Paul H. Todd Jr. , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , J. Edward Hutchinson , , Republican , 1962 United States House of Representatives elections in Michigan, 1962 , Incumbent re-elected. , nowrap , , - ! , Gerald Ford , , Republican , 1948 United States House of Representatives elections in Michigan, 1948 , Incumbent re-elected. , nowrap , , - ! , Charles E. Chamberlain , , Republican , 1956 United States House of Representatives elections in Michigan, 1956 , Incumbent re-elected. , nowrap , , - ! , John C. Mackie , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , R. James Harvey , , Republican , 1960 United States House of Representatives elections in Michigan, 1960 , Incumbent re-elected. , nowrap , , - ! , Robert P. Griffin , , Republican , 1956 United States House of Representatives elections in Michigan, 1956 , , Resigned to become List of United States Senators from Michigan, U.S. senator.
New member elected.
Republican hold. , nowrap , , - ! , Elford Albin Cederberg , , Republican , 1952 United States House of Representatives elections in Michigan, 1952 , Incumbent re-elected. , nowrap , , - ! , Raymond F. Clevenger , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , James G. O'Hara , , Democratic , 1958 United States House of Representatives elections in Michigan, 1958 , Incumbent re-elected. , nowrap , , - ! , Charles Diggs , , Democratic , 1954 United States House of Representatives elections in Michigan, 1954 , Incumbent re-elected. , nowrap , , - ! , Lucien Nedzi , , Democratic , 1961 United States House of Representatives elections in Michigan, 1961 , Incumbent re-elected. , nowrap , , - ! , William D. Ford , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , Incumbent re-elected. , nowrap , , - ! , John Dingell , , Democratic , 1955 Michigan's 15th congressional district special election, 1955 , Incumbent re-elected. , nowrap , , - ! , Martha Griffiths , , Democratic , 1954 United States House of Representatives elections in Michigan, 1954 , Incumbent re-elected. , nowrap , , - ! , William Broomfield , , Republican , 1956 United States House of Representatives elections in Michigan, 1956 , Incumbent re-elected. , nowrap , , - ! , Billie S. Farnum , , Democratic , 1964 United States House of Representatives elections in Michigan, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Minnesota

, - ! , Al Quie , , Republican , 1958 United States House of Representatives elections in Minnesota, 1958 , Incumbent re-elected. , nowrap , , - ! , Ancher Nelsen , , Republican , 1958 United States House of Representatives elections in Minnesota, 1958 , Incumbent re-elected. , nowrap , , - ! , Clark MacGregor , , Republican , 1960 United States House of Representatives elections in Minnesota, 1960 , Incumbent re-elected. , nowrap , , - ! , Joseph Karth , , Democratic , 1958 United States House of Representatives elections in Minnesota, 1958 , Incumbent re-elected. , nowrap , , - ! , Donald M. Fraser , , Democratic , 1962 United States House of Representatives elections in Minnesota, 1962 , Incumbent re-elected. , nowrap , , - ! , Alec G. Olson , , Democratic , 1962 United States House of Representatives elections in Minnesota, 1962 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Odin Langen , , Republican , 1958 United States House of Representatives elections in Minnesota, 1958 , Incumbent re-elected. , nowrap , , - ! , John Blatnik , , Democratic , 1946 United States House of Representatives elections in Minnesota, 1946 , Incumbent re-elected. , nowrap ,

Mississippi

, - ! , Thomas Abernethy (politician), Thomas Abernethy , , Democratic , 1942 United States House of Representatives elections in Mississippi, 1942 , Incumbent re-elected. , nowrap , , - ! , Jamie Whitten , , Democratic , 1941 United States House of Representatives elections in Mississippi, 1941 , Incumbent re-elected. , nowrap , , - ! , John Bell Williams , , Democratic , 1946 United States House of Representatives elections in Mississippi, 1946 , Incumbent re-elected. , nowrap , , - ! , Prentiss Walker , , Republican , 1964 United States House of Representatives elections in Mississippi, 1964 , , Incumbent retired to 1966 United States Senate election in Mississippi, run for U.S. Senator.
New member elected.
Democratic gain. , nowrap , , - ! , William M. Colmer , , Democratic , 1932 United States House of Representatives elections in Mississippi, 1932 , Incumbent re-elected. , nowrap ,

Missouri

, - ! , Frank M. Karsten , , Democratic , 1946 United States House of Representatives elections in Missouri, 1946 , Incumbent re-elected. , nowrap , , - ! , Thomas B. Curtis , , Republican , 1950 United States House of Representatives elections in Missouri, 1950 , Incumbent re-elected. , nowrap , , - ! , Leonor Sullivan , , Democratic , 1952 United States House of Representatives elections in Missouri, 1952 , Incumbent re-elected. , nowrap , , - ! , William J. Randall , , Democratic , 1959 United States House of Representatives elections in Missouri, 1959 , Incumbent re-elected. , nowrap , , - ! , Richard Walker Bolling , , Democratic , 1948 United States House of Representatives elections in Missouri, 1948 , Incumbent re-elected. , nowrap , , - ! , William Raleigh Hull Jr. , , Democratic , 1954 United States House of Representatives elections in Missouri, 1954 , Incumbent re-elected. , nowrap , , - ! , Durward Gorham Hall , , Republican , 1960 United States House of Representatives elections in Missouri, 1960 , Incumbent re-elected. , nowrap , , - ! , Richard Howard Ichord Jr. , , Democratic , 1960 United States House of Representatives elections in Missouri, 1960 , Incumbent re-elected. , nowrap , , - ! , William L. Hungate , , Democratic , 1964 United States House of Representatives elections in Missouri, 1964 , Incumbent re-elected. , nowrap , , - ! , Paul C. Jones , , Democratic , 1948 United States House of Representatives elections in Missouri, 1948 , Incumbent re-elected. , nowrap ,

Montana

, - ! , Arnold Olsen , , Democratic , 1960 United States House of Representatives elections in Montana, 1960 , Incumbent re-elected. , nowrap , , - ! , James F. Battin , , Republican , 1960 United States House of Representatives elections in Montana, 1960 , Incumbent re-elected. , nowrap ,

Nebraska

, - ! , Clair Armstrong Callan , , Democratic , 1964 United States House of Representatives elections in Nebraska, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Glenn Cunningham (Nebraska politician), Glenn Cunningham , , Republican , 1956 United States House of Representatives elections in Nebraska, 1956 , Incumbent re-elected. , nowrap , , - ! , David Martin (Nebraska politician), David Martin , , Republican , 1960 United States House of Representatives elections in Nebraska, 1960 , Incumbent re-elected. , nowrap ,

Nevada

, - ! , Walter S. Baring Jr. , , Democratic , 1956 United States House of Representatives election in Nevada, 1956 , Incumbent re-elected. , nowrap ,

New Hampshire

, - ! , Joseph Oliva Huot , , Democratic , 1964 United States House of Representatives elections in New Hampshire, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , James Colgate Cleveland , , Republican , 1962 United States House of Representatives elections in New Hampshire, 1962 , Incumbent re-elected. , nowrap ,

New Jersey

, - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Thomas C. McGrath Jr. , , Democratic , 1964 United States House of Representatives elections in New Jersey, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , James J. Howard , , Democratic , 1964 United States House of Representatives elections in New Jersey, 1964 , Incumbent re-elected. , nowrap , , - ! , Frank Thompson , , Democratic , 1954 United States House of Representatives elections in New Jersey, 1954 , Incumbent re-elected. , nowrap , , - ! , Peter Frelinghuysen Jr. , , Republican , 1952 United States House of Representatives elections in New Jersey, 1952 , Incumbent re-elected. , nowrap , , - ! , William T. Cahill
, , Republican , 1958 United States House of Representatives elections in New Jersey, 1958 , Incumbent re-elected. , nowrap , , - ! , William B. Widnall , , Republican , 1950 United States House of Representatives elections in New Jersey, 1950 , Incumbent re-elected. , nowrap , , - ! , Charles Samuel Joelson , , Democratic , 1960 United States House of Representatives elections in New Jersey, 1960 , Incumbent re-elected. , nowrap , , - ! , Henry Helstoski , , Democratic , 1964 United States House of Representatives elections in New Jersey, 1964 , Incumbent re-elected. , nowrap , , - ! , Peter W. Rodino , , Democratic , 1948 United States House of Representatives elections in New Jersey, 1948 , Incumbent re-elected. , nowrap , , - ! , Joseph Minish , , Democratic , 1962 United States House of Representatives elections in New Jersey, 1962 , Incumbent re-elected. , nowrap , , - ! rowspan=2 , , Florence P. Dwyer
, , Republican , 1956 United States House of Representatives elections in New Jersey, 1956 , Incumbent re-elected. , rowspan=2 nowrap , , - , Paul J. Krebs , , Democratic , 1964 United States House of Representatives elections in New Jersey, 1964 , , Incumbent retired.
Democratic loss. , - ! , Cornelius Gallagher (American politician), Cornelius Gallagher , , Democratic , 1958 United States House of Representatives elections in New Jersey, 1958 , Incumbent re-elected. , nowrap , , - ! , Dominick V. Daniels , , Democratic , 1958 United States House of Representatives elections in New Jersey, 1958 , Incumbent re-elected. , nowrap , , - ! , Edward J. Patten , , Democratic , 1962 United States House of Representatives elections in New Jersey, 1962 , Incumbent re-elected. , nowrap ,

New Mexico

, - ! , Thomas G. Morris , , Democratic , 1958 United States House of Representatives election in New Mexico, 1958 , Incumbent re-elected. , rowspan=2 nowrap , , - ! , E. S. Johnny Walker , , Democratic , 1964 United States House of Representatives election in New Mexico, 1964 , Incumbent re-elected.

New York

, - ! , Otis G. Pike , , Democratic , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , James R. Grover Jr. , , Republican , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , Lester L. Wolff , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , John W. Wydler , , Republican , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , Herbert Tenzer , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Seymour Halpern , , Republican , 1958 United States House of Representatives elections in New York, 1958 , Incumbent re-elected. , nowrap , , - ! , Joseph P. Addabbo , , Democratic , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , Benjamin Stanley Rosenthal , , Democratic , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , James J. Delaney , , Democratic , 1948 United States House of Representatives elections in New York, 1948 , Incumbent re-elected. , nowrap , , - ! , Emanuel Celler , , Democratic , 1922 United States House of Representatives elections in New York, 1922 , Incumbent re-elected. , nowrap , , - ! , Eugene James Keogh , , Democratic , 1936 United States House of Representatives elections in New York, 1936 , , Incumbent retired.
New member elected.
Democratic hold. , nowrap , , - ! , Edna F. Kelly , , Democratic , 1949 United States House of Representatives elections in New York, 1949 , Incumbent re-elected. , nowrap , , - ! , Abraham J. Multer , , Democratic , 1947 United States House of Representatives elections in New York, 1947 , Incumbent re-elected. , nowrap , , - ! , John J. Rooney (politician), John J. Rooney , , Democratic , 1944 United States House of Representatives elections in New York, 1944 , Incumbent re-elected. , nowrap , , - ! , Hugh Carey , , Democratic , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , John M. Murphy , , Democratic , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , Theodore R. Kupferman , , Republican , 1966 United States House of Representatives elections in New York, 1966 , Incumbent re-elected. , nowrap , , - ! , Adam Clayton Powell Jr. , , Democratic , 1944 United States House of Representatives elections in New York, 1944 , Incumbent re-elected. , nowrap , , - ! , Leonard Farbstein , , Democratic , 1956 United States House of Representatives elections in New York, 1956 , Incumbent re-elected. , nowrap , , - ! , William Fitts Ryan , , Democratic , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , James H. Scheuer , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Jacob H. Gilbert , , Democratic , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , Jonathan Brewster Bingham , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Paul A. Fino , , Republican , 1952 United States House of Representatives elections in New York, 1952 , Incumbent re-elected. , nowrap , , - ! , Richard Ottinger , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Ogden Reid , , Republican , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , John G. Dow , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Joseph Y. Resnick , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Leo W. O'Brien , , Democratic , 1952 United States House of Representatives elections in New York, 1952 , , Incumbent retired.
New member elected.
Republican gain. , nowrap , , - ! , Carleton J. King , , Republican , 1960 United States House of Representatives elections in New York, 1960 , Incumbent re-elected. , nowrap , , - ! , Robert C. McEwen , , Republican , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Alexander Pirnie , , Republican , 1958 United States House of Representatives elections in New York, 1958 , Incumbent re-elected. , nowrap , , - ! , Howard W. Robison , , Republican , 1958 United States House of Representatives elections in New York, 1958 , Incumbent re-elected. , nowrap , , - ! , James M. Hanley , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Samuel S. Stratton , , Democratic , 1958 United States House of Representatives elections in New York, 1958 , Incumbent re-elected. , nowrap , , - ! , Frank Horton (New York politician), Frank Horton , , Republican , 1962 United States House of Representatives elections in New York, 1962 , Incumbent re-elected. , nowrap , , - ! , Barber Conable , , Republican , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Charles Goodell , , Republican , 1959 United States House of Representatives elections in New York, 1959 , Incumbent re-elected. , nowrap , , - ! , Richard D. McCarthy , , Democratic , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Henry P. Smith III , , Republican , 1964 United States House of Representatives elections in New York, 1964 , Incumbent re-elected. , nowrap , , - ! , Thaddeus J. Dulski , , Democratic , 1958 United States House of Representatives elections in New York, 1958 , Incumbent re-elected. , nowrap ,

North Carolina

, - ! , Walter B. Jones Sr. , , Democratic , 1966 United States House of Representatives elections in North Carolina, 1966 , Incumbent re-elected. , nowrap , , - ! , Lawrence H. Fountain , , Democratic , 1952 United States House of Representatives elections in North Carolina, 1952 , Incumbent re-elected. , nowrap , , - ! , David N. Henderson , , Democratic , 1960 United States House of Representatives elections in North Carolina, 1960 , Incumbent re-elected. , nowrap , , - ! , Harold D. Cooley , , Democratic , 1934 United States House of Representatives elections in North Carolina, 1934 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Ralph James Scott , , Democratic , 1956 United States House of Representatives elections in North Carolina, 1956 , , Incumbent retired.
New member elected.
Democratic hold. , nowrap , , - ! , Horace R. Kornegay , , Democratic , 1960 United States House of Representatives elections in North Carolina, 1960 , Incumbent re-elected. , nowrap , , - ! , Alton Lennon , , Democratic , 1956 United States House of Representatives elections in North Carolina, 1956 , Incumbent re-elected. , nowrap , , - ! , Charles R. Jonas , , Republican , 1952 United States House of Representatives elections in North Carolina, 1952 , Incumbent re-elected. , nowrap , , - ! , Jim Broyhill , , Republican , 1962 United States House of Representatives elections in North Carolina, 1962 , Incumbent re-elected. , nowrap , , - ! , Basil Lee Whitener , , Democratic , 1956 United States House of Representatives elections in North Carolina, 1956 , Incumbent re-elected. , nowrap , , - ! , Roy A. Taylor , , Democratic , 1960 United States House of Representatives elections in North Carolina, 1960 , Incumbent re-elected. , nowrap ,

North Dakota

, - ! , Mark Andrews (politician), Mark Andrews , , Republican , 1963 North Dakota's 1st congressional district special election, 1963 , Incumbent re-elected. , nowrap , , - ! , Rolland W. Redlin , , Democratic , 1964 United States House of Representatives elections in North Dakota, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Ohio

Ohio redistricted its at-large seat into a 24th district, splitting out the counties to the southwest of Dayton from the city itself, as well as moving a district in southeastern Ohio into the Columbus area. , - ! , John J. Gilligan , , Democratic , 1964 United States House of Representatives elections in Ohio, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Donald D. Clancy , , Republican , 1960 United States House of Representatives elections in Ohio, 1960 , Incumbent re-elected. , nowrap , , - ! , Rodney M. Love , , Democratic , 1964 United States House of Representatives elections in Ohio, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , William Moore McCulloch , , Republican , 1947 United States House of Representatives elections in Ohio, 1947 , Incumbent re-elected. , nowrap , , - ! , Del Latta , , Republican , 1958 United States House of Representatives elections in Ohio, 1958 , Incumbent re-elected. , nowrap , , - ! , Bill Harsha , , Republican , 1960 United States House of Representatives elections in Ohio, 1960 , Incumbent re-elected. , nowrap , , - ! , Bud Brown (politician), Bud Brown , , Republican , 1965 , Incumbent re-elected. , nowrap , , - ! , Jackson Edward Betts , , Republican , 1950 United States House of Representatives elections in Ohio, 1950 , Incumbent re-elected. , nowrap , , - ! , Thomas L. Ashley , , Democratic , 1954 United States House of Representatives elections in Ohio, 1954 , Incumbent re-elected. , nowrap , , - ! , Walter H. Moeller , , Democratic , 1964 United States House of Representatives elections in Ohio, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , J. William Stanton , , Republican , 1964 United States House of Representatives elections in Ohio, 1964 , Incumbent re-elected. , nowrap , , - ! , Samuel L. Devine , , Republican , 1958 United States House of Representatives elections in Ohio, 1958 , Incumbent re-elected. , nowrap , , - ! , Charles Adams Mosher , , Republican , 1960 United States House of Representatives elections in Ohio, 1960 , Incumbent re-elected. , nowrap , , - ! , William Hanes Ayres , , Republican , 1950 United States House of Representatives elections in Ohio, 1950 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Frank T. Bow , , Republican , 1950 United States House of Representatives elections in Ohio, 1950 , Incumbent re-elected. , nowrap , , - ! rowspan=2 , , John M. Ashbrook , , Republican , 1960 United States House of Representatives elections in Ohio, 1960 , Incumbent re-elected. , rowspan=2 nowrap , , - , Robert T. Secrest
, , Democratic , 1962 United States House of Representatives elections in Ohio, 1962 , , Incumbent lost re-election.
Democratic loss. , - ! , Wayne Hays , , Democratic , 1948 United States House of Representatives elections in Ohio, 1948 , Incumbent re-elected. , nowrap , , - ! , Michael J. Kirwan , , Democratic , 1936 United States House of Representatives elections in Ohio, 1936 , Incumbent re-elected. , nowrap , , - ! , Michael A. Feighan , , Democratic , 1942 United States House of Representatives elections in Ohio, 1942 , Incumbent re-elected. , nowrap , , - ! , Charles Vanik , , Democratic , 1954 United States House of Representatives elections in Ohio, 1954 , Incumbent re-elected. , nowrap , , - ! , Frances P. Bolton , , Republican , 1940 United States House of Representatives elections in Ohio, 1940 , Incumbent re-elected. , nowrap , , - ! , William Edwin Minshall Jr. , , Republican , 1954 United States House of Representatives elections in Ohio, 1954 , Incumbent re-elected. , nowrap , , - ! , Robert E. Sweeney
, , Democratic , 1964 United States House of Representatives elections in Ohio, 1964 , , Incumbent retired.
New member elected.
Republican gain. , nowrap ,

Oklahoma

, - ! , Page Belcher , , Republican , 1950 United States House of Representatives elections in Oklahoma, 1950 , Incumbent re-elected. , nowrap , , - ! , Ed Edmondson (politician), Ed Edmondson , , Democratic , 1952 United States House of Representatives elections in Oklahoma, 1952 , Incumbent re-elected. , nowrap , , - ! , Carl Albert , , Democratic , 1946 United States House of Representatives elections in Oklahoma, 1946 , Incumbent re-elected. , nowrap , , - ! , Tom Steed , , Democratic , 1948 United States House of Representatives elections in Oklahoma, 1948 , Incumbent re-elected. , nowrap , , - ! , John Jarman , , Democratic , 1950 United States House of Representatives elections in Oklahoma, 1950 , Incumbent re-elected. , nowrap , , - ! , Jed Johnson Jr. , , Democratic , 1964 United States House of Representatives elections in Oklahoma, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Oregon

, - ! , Wendell Wyatt , , Republican , 1964 United States House of Representatives elections in Oregon, 1964 , Incumbent re-elected. , nowrap , , - ! , Al Ullman , , Democratic , 1956 United States House of Representatives elections in Oregon, 1956 , Incumbent re-elected. , nowrap , , - ! , Edith Green , , Democratic , 1954 United States House of Representatives elections in Oregon, 1954 , Incumbent re-elected. , nowrap , , - ! , Robert B. Duncan , , Democratic , 1962 United States House of Representatives elections in Oregon, 1962 , , Incumbent retired to 1966 United States Senate election in Oregon, run for U.S. Senator.
New member elected.
Republican gain. , nowrap ,

Pennsylvania

, - ! , William A. Barrett , , Democratic , 1948 United States House of Representatives elections in Pennsylvania, 1948 , Incumbent re-elected. , nowrap , , - ! , Robert N. C. Nix Sr. , , Democratic , 1958 United States House of Representatives elections in Pennsylvania, 1958 , Incumbent re-elected. , nowrap , , - ! , James A. Byrne , , Democratic , 1952 United States House of Representatives elections in Pennsylvania, 1952 , Incumbent re-elected. , nowrap , , - ! , Herman Toll , , Democratic , 1958 United States House of Representatives elections in Pennsylvania, 1958 , , Incumbent retired.
New member elected.
Democratic hold. , nowrap , , - ! , William J. Green III , , Democratic , 1964 United States House of Representatives elections in Pennsylvania, 1964 , Incumbent re-elected. , nowrap , , - ! , George M. Rhodes , , Democratic , 1948 United States House of Representatives elections in Pennsylvania, 1948 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Willard S. Curtin , , Republican , 1956 United States House of Representatives elections in Pennsylvania, 1956 , , Incumbent retired.
New member elected.
Republican hold. , nowrap , , - ! rowspan=2 , , George Watkins (politician), George Watkins
, , Republican , 1964 United States House of Representatives elections in Pennsylvania, 1964 , Incumbent re-elected. , rowspan=2 nowrap , , - , Paul B. Dague , , Republican , 1946 United States House of Representatives elections in Pennsylvania, 1946 , , Incumbent retired.
Republican loss. , - ! , Joseph M. McDade , , Republican , 1962 United States House of Representatives elections in Pennsylvania, 1962 , Incumbent re-elected. , nowrap , , - ! , Dan Flood , , Democratic , 1954 United States House of Representatives elections in Pennsylvania, 1954 , Incumbent re-elected. , nowrap , , - ! , J. Irving Whalley , , Republican , 1960 United States House of Representatives elections in Pennsylvania, 1960 , Incumbent re-elected. , nowrap , , - ! , Richard Schweiker , , Republican , 1960 United States House of Representatives elections in Pennsylvania, 1960 , Incumbent re-elected. , nowrap , , - ! , William S. Moorhead , , Democratic , 1958 United States House of Representatives elections in Pennsylvania, 1958 , Incumbent re-elected. , nowrap , , - ! , Fred B. Rooney , , Democratic , 1963 United States House of Representatives elections in Pennsylvania, 1963 , Incumbent re-elected. , nowrap , , - ! , John C. Kunkel , , Republican , 1961 United States House of Representatives elections in Pennsylvania, 1961 , , Incumbent retired.
New member elected.
Republican hold. , nowrap , , - ! , Herman T. Schneebeli , , Republican , 1960 United States House of Representatives elections in Pennsylvania, 1960 , Incumbent re-elected. , nowrap , , - ! , Robert J. Corbett , , Republican , 1944 United States House of Representatives elections in Pennsylvania, 1944 , Incumbent re-elected. , nowrap , , - ! , Nathaniel N. Craley Jr. , , Democratic , 1964 United States House of Representatives elections in Pennsylvania, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Elmer J. Holland , , Democratic , 1956 United States House of Representatives elections in Pennsylvania, 1956 , Incumbent re-elected. , nowrap , , - ! , John Herman Dent , , Democratic , 1958 United States House of Representatives elections in Pennsylvania, 1958 , Incumbent re-elected. , nowrap , , - ! , John P. Saylor , , Republican , 1949 United States House of Representatives elections in Pennsylvania, 1949 , Incumbent re-elected. , nowrap , , - ! , Albert W. Johnson , , Republican , 1963 United States House of Representatives elections in Pennsylvania, 1963 , Incumbent re-elected. , nowrap , , - ! , Joseph P. Vigorito , , Democratic , 1964 United States House of Representatives elections in Pennsylvania, 1964 , Incumbent re-elected. , nowrap , , - ! , Frank M. Clark , , Democratic , 1954 United States House of Representatives elections in Pennsylvania, 1954 , Incumbent re-elected. , nowrap , , - ! , Thomas E. Morgan , , Democratic , 1944 United States House of Representatives elections in Pennsylvania, 1944 , Incumbent re-elected. , nowrap , , - ! , James G. Fulton , , Republican , 1944 United States House of Representatives elections in Pennsylvania, 1944 , Incumbent re-elected. , nowrap ,

Rhode Island

, - ! , Fernand St. Germain , , Democratic , 1960 United States House of Representatives elections in Rhode Island, 1960 , Incumbent re-elected. , nowrap , , - ! , John E. Fogarty , , Democratic , 1940 United States House of Representatives elections in Rhode Island, 1940 , Incumbent re-elected. , nowrap ,

South Carolina

, - ! , L. Mendel Rivers , , Democratic , 1940 United States House of Representatives elections in South Carolina, 1940 , Incumbent re-elected. , nowrap , , - ! , Albert Watson (South Carolina politician), Albert Watson , , Republican , 1962 United States House of Representatives elections in South Carolina, 1962 , Incumbent re-elected. , nowrap , , - ! , William Jennings Bryan Dorn , , Democratic , 1950 United States House of Representatives elections in South Carolina, 1950 , Incumbent re-elected. , nowrap , , - ! , Robert T. Ashmore , , Democratic , 1953 United States House of Representatives elections in South Carolina, 1953 , Incumbent re-elected. , nowrap , , - ! , Thomas S. Gettys , , Democratic , 1964 United States House of Representatives elections in South Carolina, 1964 , Incumbent re-elected. , nowrap , , - ! , John L. McMillan , , Democratic , 1938 United States House of Representatives elections in South Carolina, 1938 , Incumbent re-elected. , nowrap ,

South Dakota

, - ! , Ben Reifel , , Republican , 1960 United States House of Representatives elections in South Dakota, 1960 , Incumbent re-elected. , nowrap , , - ! , Ellis Yarnal Berry , , Republican , 1950 United States House of Representatives elections in South Dakota, 1950 , Incumbent re-elected. , nowrap ,

Tennessee

, - ! , Jimmy Quillen , , Republican , 1962 United States House of Representatives elections in Tennessee, 1962 , Incumbent re-elected. , nowrap , , - ! , John Duncan Sr. , , Republican , 1964 United States House of Representatives elections in Tennessee, 1964 , Incumbent re-elected. , nowrap , , - ! , Bill Brock , , Republican , 1962 United States House of Representatives elections in Tennessee, 1962 , Incumbent re-elected. , nowrap , , - ! , Joe L. Evins , , Democratic , 1946 United States House of Representatives elections in Tennessee, 1946 , Incumbent re-elected. , nowrap , , - ! , Richard Fulton , , Democratic , 1962 United States House of Representatives elections in Tennessee, 1962 , Incumbent re-elected. , nowrap , , - ! , William Anderson (naval officer), William Anderson , , Democratic , 1964 United States House of Representatives elections in Tennessee, 1964 , Incumbent re-elected. , nowrap , , - ! , Tom J. Murray , , Democratic , 1942 United States House of Representatives elections in Tennessee, 1942 , , Incumbent lost renomination.
New member elected.
Democratic hold. , nowrap , , - ! , Fats Everett , , Democratic , 1958 United States House of Representatives elections in Tennessee, 1958 , Incumbent re-elected. , nowrap , , - ! , George W. Grider , , Democratic , 1964 United States House of Representatives elections in Tennessee, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Texas

Texas redistricted for this election, eliminating its at-large district and removing two East Texas districts in favor of adding three districts in South Texas, suburban Houston, and suburban Dallas. , - ! , Wright Patman , , Democratic , 1928 United States House of Representatives elections in Texas, 1928 , Incumbent re-elected. , nowrap , , - ! , John Dowdy
, , Democratic , 1952 United States House of Representatives elections in Texas, 1952 , Incumbent re-elected. , nowrap , , - ! , Joe R. Pool
, , Democratic , 1962 United States House of Representatives elections in Texas, 1962 , Incumbent re-elected. , nowrap , , - ! rowspan=2 , , Ray Roberts , , Democratic , 1962 United States House of Representatives elections in Texas, 1962 , Incumbent re-elected. , rowspan=2 nowrap , , - , Lindley Beckworth
, , Democratic , 1956 United States House of Representatives elections in Texas, 1956 , , Incumbent lost renomination.
Democratic loss. , - ! , Earle Cabell , , Democratic , 1964 United States House of Representatives elections in Texas, 1964 , Incumbent re-elected. , nowrap , , - ! , Olin E. Teague , , Democratic , 1946 United States House of Representatives elections in Texas, 1946 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Republican gain. , nowrap , , - ! , Lera Millard Thomas , , Democratic , 1966 United States House of Representatives elections in Texas, 1966 , , Incumbent retired.
New member elected.
Democratic hold. , nowrap , , - ! rowspan=2 , , Jack Brooks (American politician), Jack Brooks
, , Democratic , 1952 United States House of Representatives elections in Texas, 1952 , Incumbent re-elected. , rowspan=2 nowrap , , - , Clark W. Thompson (Texas politician), Clark W. Thompson , , Democratic , 1947 United States House of Representatives elections in Texas, 1947 , , Incumbent retired.
Democratic loss. , - ! , J. J. Pickle , , Democratic , 1963 United States House of Representatives elections in Texas, 1963 , Incumbent re-elected. , nowrap , , - ! , William R. Poage , , Democratic , 1936 United States House of Representatives elections in Texas, 1936 , Incumbent re-elected. , nowrap , , - ! , Jim Wright , , Democratic , 1954 United States House of Representatives elections in Texas, 1954 , Incumbent re-elected. , nowrap , , - ! , Graham B. Purcell Jr. , , Democratic , 1962 United States House of Representatives elections in Texas, 1962 , Incumbent re-elected. , nowrap , , - ! , John Andrew Young , , Democratic , 1956 United States House of Representatives elections in Texas, 1956 , Incumbent re-elected. , nowrap , , - ! , Kika de la Garza , , Democratic , 1964 United States House of Representatives elections in Texas, 1964 , Incumbent re-elected. , nowrap , , - ! , Richard Crawford White , , Democratic , 1964 United States House of Representatives elections in Texas, 1964 , Incumbent re-elected. , nowrap , , - ! , Omar Burleson , , Democratic , 1946 United States House of Representatives elections in Texas, 1946 , Incumbent re-elected. , nowrap , , - ! , Walter E. Rogers , , Democratic , 1950 United States House of Representatives elections in Texas, 1950 , , Incumbent retired.
New member elected.
Republican gain. , nowrap , , - ! , George H. Mahon , , Democratic , 1934 United States House of Representatives elections in Texas, 1934 , Incumbent re-elected. , nowrap , , - ! , Henry B. González , , Democratic , 1961 United States House of Representatives elections in Texas, 1961 , Incumbent re-elected. , nowrap , , - ! , O. C. Fisher , , Democratic , 1942 United States House of Representatives elections in Texas, 1942 , Incumbent re-elected. , nowrap , , - ! , Robert R. Casey , , Democratic , 1958 United States House of Representatives elections in Texas, 1958 , Incumbent re-elected. , nowrap , , - ! , colspan=3 , None (District created) , , New seat.
New member elected.
Democratic gain. , nowrap ,

Utah

, - ! , Laurence J. Burton , , Republican , 1962 United States House of Representatives elections in Utah, 1962 , Incumbent re-elected. , nowrap , , - ! , David S. King , , Democratic , 1964 United States House of Representatives elections in Utah, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap ,

Vermont

, - ! , Robert Stafford , , Republican , 1960 United States House of Representatives election in Vermont, 1960 , Incumbent re-elected. , nowrap ,

Virginia

, - ! , Thomas N. Downing , , Democratic , 1958 United States House of Representatives elections in Virginia, 1958 , Incumbent re-elected. , nowrap , , - ! , Porter Hardy Jr. , , Democratic , 1946 United States House of Representatives elections in Virginia, 1946 , Incumbent re-elected. , nowrap , , - ! , David E. Satterfield III , , Democratic , 1964 United States House of Representatives elections in Virginia, 1964 , Incumbent re-elected. , nowrap , , - ! , Watkins Moorman Abbitt , , Democratic , 1948 United States House of Representatives elections in Virginia, 1948 , Incumbent re-elected. , nowrap , , - ! , William M. Tuck , , Democratic , 1953 United States House of Representatives elections in Virginia, 1953 , Incumbent re-elected. , nowrap , , - ! , Richard Harding Poff , , Republican , 1952 United States House of Representatives elections in Virginia, 1952 , Incumbent re-elected. , nowrap , , - ! , John Otho Marsh Jr. , , Democratic , 1962 United States House of Representatives elections in Virginia, 1962 , Incumbent re-elected. , nowrap , , - ! , Howard W. Smith , , Democratic , 1930 United States House of Representatives elections in Virginia, 1930 , , Incumbent lost renomination.
New member elected.
Republican gain. , nowrap , , - ! , W. Pat Jennings , , Democratic , 1954 United States House of Representatives elections in Virginia, 1954 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Joel Broyhill , , Republican , 1952 United States House of Representatives elections in Virginia, 1952 , Incumbent re-elected. , nowrap ,

Washington

, - ! , Thomas Pelly , , Republican , 1952 United States House of Representatives elections in Washington, 1952 , Incumbent re-elected. , nowrap , , - ! , Lloyd Meeds , , Democratic , 1964 United States House of Representatives elections in Washington, 1964 , Incumbent re-elected. , nowrap , , - ! , Julia Butler Hansen , , Democratic , 1960 United States House of Representatives elections in Washington, 1960 , Incumbent re-elected. , nowrap , , - ! , Catherine Dean May , , Republican , 1958 United States House of Representatives elections in Washington, 1958 , Incumbent re-elected. , nowrap , , - ! , Tom Foley , , Democratic , 1964 United States House of Representatives elections in Washington, 1964 , Incumbent re-elected. , nowrap , , - ! , Floyd Hicks , , Democratic , 1964 United States House of Representatives elections in Washington, 1964 , Incumbent re-elected. , nowrap , , - ! , Brock Adams , , Democratic , 1964 United States House of Representatives elections in Washington, 1964 , Incumbent re-elected. , nowrap ,

West Virginia

, - ! , Arch A. Moore Jr. , , Republican , 1956 United States House of Representatives elections in West Virginia, 1956 , Incumbent re-elected. , nowrap , , - ! , Harley Orrin Staggers , , Democratic , 1948 United States House of Representatives elections in West Virginia, 1948 , Incumbent re-elected. , nowrap , , - ! , John M. Slack Jr. , , Democratic , 1958 United States House of Representatives elections in West Virginia, 1958 , Incumbent re-elected. , nowrap , , - ! , Ken Hechler , , Democratic , 1958 United States House of Representatives elections in West Virginia, 1958 , Incumbent re-elected. , nowrap , , - ! , James Kee , , Democratic , 1964 United States House of Representatives elections in West Virginia, 1964 , Incumbent re-elected. , nowrap ,

Wisconsin

, - ! , Lynn E. Stalbaum , , Democratic , 1964 United States House of Representatives elections in Wisconsin, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Robert Kastenmeier , , Democratic , 1958 United States House of Representatives elections in Wisconsin, 1958 , Incumbent re-elected. , nowrap , , - ! , Vernon Wallace Thomson , , Republican , 1960 United States House of Representatives elections in Wisconsin, 1960 , Incumbent re-elected. , nowrap , , - ! , Clement J. Zablocki , , Democratic , 1948 United States House of Representatives elections in Wisconsin, 1948 , Incumbent re-elected. , nowrap , , - ! , Henry S. Reuss , , Democratic , 1954 United States House of Representatives elections in Wisconsin, 1954 , Incumbent re-elected. , nowrap , , - ! , John Abner Race , , Democratic , 1964 United States House of Representatives elections in Wisconsin, 1964 , , Incumbent lost re-election.
New member elected.
Republican gain. , nowrap , , - ! , Melvin Laird , , Republican , 1952 United States House of Representatives elections in Wisconsin, 1952 , Incumbent re-elected. , nowrap , , - ! , John W. Byrnes , , Republican , 1944 United States House of Representatives elections in Wisconsin, 1944 , Incumbent re-elected. , nowrap , , - ! , Glenn Robert Davis , , Republican , 1964 United States House of Representatives elections in Wisconsin, 1964 , Incumbent re-elected. , nowrap , , - ! , Alvin O'Konski , , Republican , 1942 United States House of Representatives elections in Wisconsin, 1942 , Incumbent re-elected. , nowrap ,

Wyoming

, - ! , Teno Roncalio , , Democratic , 1964 United States House of Representatives election in Wyoming, 1964 , , Incumbent retired to 1966 United States Senate election in Wyoming, run for U.S. Senator.
New member elected.
Republican gain. , nowrap ,