List Of Election Bellwether Counties In The United States
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Election bellwether counties in the United States are
counties A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...
that vote in alignment with the country as a whole in
United States presidential elections The election of the president and the vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the fifty U.S. states or in Washington, D.C., cast ballots not dire ...
, so that the county votes for the candidate who ultimately wins the election. The strongest
bellwether A bellwether is a leader or an indicator of trends.bellwether
" ''Cambridge Dictionary''. Ret ...
counties are those that back the winning candidate in all elections. There are a total of 3,142 counties or county equivalents in the United States.


Significant bellwethers

The following
county A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...
is the only county to have voted for the winner of the presidential election in every election starting in
1980 Events January * January 4 – U.S. President Jimmy Carter proclaims a grain embargo against the USSR with the support of the European Commission. * January 6 – Global Positioning System time epoch begins at 00:00 UTC. * January 9 – ...
: *
Clallam County, Washington Clallam County is a County (United States), county in the U.S. state of Washington (state), Washington. As of the 2020 United States census, 2020 census, the population was 77,155, with an estimated population of 78,209 in 2021. The county seat ...


Deviations in one election

The following 44 counties have deviated from the winner of the presidential election in one election since 1980 (no counties deviated from the winner in 1980, 1984, or 1996):


Deviations in two elections

The following 111 counties have deviated from the winner of the presidential election in two elections since 1980: *
Allamakee County, Iowa Allamakee County () is the northeasternmost county in the U.S. state of Iowa. As of the 2020 census, the population was 14,061. Its county seat is Waukon. History Allamakee County was formed on February 20, 1847. The derivation of the name is ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Alamosa County, Colorado Alamosa County is a county located in the U.S. state of Colorado. As of the 2020 United States Census, 2020 census, the population was 16,376. The county seat is Alamosa, Colorado, Alamosa. The county name is the Spanish language word for a "Gr ...
, in 2016 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Baldwin County, Georgia Baldwin County is a county located in the central portion of the U.S. state of Georgia. As of the 2020 census, the population was 43,799. The county seat is Milledgeville, which was developed along the Oconee River. Baldwin County is part ...
, in 1980 and 2016 *
Benzie County, Michigan Benzie County ( ) is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 17,970. The county seat is Beulah. The county was initially set off in 1863 and organized in 1869.
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Blue Earth County, Minnesota Blue Earth County is a county in the State of Minnesota. As of the 2020 census, the population was 69,112. Its county seat is Mankato. The county is named for the Blue Earth River and for the deposits of blue-green clay once evident along the ...
, in 1988 and 2004 *
Brewster County, Texas Brewster County is a county located in the U.S. state of Texas. It is in West Texas and its county seat (and only city) is Alpine. It is one of the nine counties that comprise the Trans-Pecos region, and borders Mexico. Brewster County is the ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Bureau County, Illinois Bureau County is a county located in the U.S. state of Illinois. As of the 2010 United States Census, the population was 34,978. Its county seat is Princeton. Bureau County is part of the Ottawa, IL Micropolitan Statistical Area, and the Hennep ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Butte County, California Butte County () is a county located in the northern part of the U.S. state of California. In the 2020 census, its population was 211,632. The county seat is Oroville. Butte County comprises the Chico, CA metropolitan statistical area. It is ...
, in
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
and
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
*
Caddo Parish, Louisiana Caddo Parish (French language, French: ''Paroisse de Caddo'') is a Parish (administrative division), parish located in the northwest corner of the U.S. state of Louisiana. According to the 2020 United States census, 2020 U.S. census, the parish ...
, in 2000 and 2016 *
Caledonia County, Vermont Caledonia County is a county located in the northeastern part of the U.S. state of Vermont. As of the 2020 census, the population was 30,233. Its shire town (county seat) is the town of St. Johnsbury. The county was created in 1792 and organ ...
, in 2004 and 2016 *
Calhoun County, Michigan Calhoun County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 134,310. The county seat is Marshall. The county was established on October 19, 1829, and named after John C. Calhoun, who was at the time Vice ...
, in 2000 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Calhoun County, South Carolina Calhoun County is a county in the U.S. state of South Carolina. As of the 2020 census, its population was 14,119, making it the third-least populous county in the state. Its county seat is St. Matthews. Located in a rural upland area long dev ...
, in 1980 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
* Cascade County, Montana, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Cass County, Michigan Cass County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 51,589. Its county seat is Cassopolis. Cass County is included in the South Bend–Mishawaka, IN-MI, Metropolitan Statistical Area which has a t ...
, in 2012 and 2020 *
Chesapeake, Virginia Chesapeake is an independent city in the Commonwealth of Virginia, United States. At the 2020 census, the population was 249,422, it is the second-most populous independent city in Virginia, tenth-largest in the Mid-Atlantic, and the 90th ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
*
Chickasaw County, Mississippi Chickasaw County is a county located in the U.S. state of Mississippi. As of the 2010 census, the population was 17,392. Its county seats are Houston and Okolona. The county is named for the Chickasaw people, who lived in this area for hundred ...
, in 1980 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Clark County, Washington Clark County is the southernmost county in the U.S. state of Washington. As of the 2020 census, the population was 503,311, making it Washington's fifth-most populous county. Its county seat and largest city is Vancouver. It was the first co ...
, in 1988 and 2016 *
Clear Creek County, Colorado Clear Creek County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 9,397. The county seat is Georgetown. Clear Creek County is part of the Denver metropolitan area. History Clear Creek County w ...
, in 2004 and 2016 *
Coles County, Illinois Coles County is a county in Illinois. As of the 2020 census, the population was 46,863. Its county seat is Charleston, which is also the home of Eastern Illinois University. Coles County is part of the Charleston- Mattoon, IL Micropolitan St ...
, in 2012 and 2020 *
Colleton County, South Carolina Colleton County is in the Lowcountry region of the U.S. state of South Carolina. As of the 2020 census, the population was 38,604. Its county seat is Walterboro. The county is named after Sir John Colleton, 1st Baronet, one of the eight Lords ...
, in 1980 and 2020 *
Columbia County, Wisconsin Columbia County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 58,490. Its county seat and largest city is Portage. The county was created in 1846 as part of Wisconsin Territory. Columbia County i ...
, in 2000 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Coös County, New Hampshire Coös County (, with two syllables), frequently spelled Coos County, is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 31,268, making it the least-populated county in the state. The county seat is Lancas ...
, in 2004 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Cayuga County, New York Cayuga County is a county in the U.S. state of New York. As of the 2020 census, the population was 76,248. Its county seat and largest city is Auburn. The county was named for the Cayuga people, one of the Indian tribes in the Iroquois Conf ...
, in 2000 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Chautauqua County, New York Chautauqua County is the westernmost County (United States), county in the U.S. state of New York (state), New York. As of the United States Census 2020, 2020 census, the population was 127,657. Its county seat is Mayville, New York, Mayville, an ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2020 *
Delaware County, Indiana Delaware County is a County (United States), county in the east central portion of the U.S. state of Indiana. As of 2020, the population was 111,903. The county seat is Muncie, Indiana, Muncie. Delaware County is part of the Muncie, IN metropoli ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Dutchess County, New York Dutchess County is a county in the U.S. state of New York. As of the 2020 census, the population was 295,911. The county seat is the city of Poughkeepsie. The county was created in 1683, one of New York's first twelve counties, and later orga ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2016 *
Eagle County, Colorado Eagle County is a county located in the U.S. state of Colorado. As of the 2020 United States Census, 2020 census, the population was 55,731. The county seat is the Eagle, Colorado, Town of Eagle and the most populous community is Edwards, Colora ...
, in 2004 and 2016 *
East Baton Rouge Parish, Louisiana East Baton Rouge Parish (french: Paroisse de Bâton Rouge Est) is the most populous parish in the U.S. state of Louisiana. At the 2010 U.S. census, its population was 440,171, and 456,781 at the 2020 census. The parish seat is Baton Rouge, Lou ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2016 *
Elk County, Pennsylvania Elk County is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, the population was 30,990. Its county seat is Ridgway, Pennsylvania, Ridgway. The county was crea ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Essex County, Virginia Essex County is a county located in the Middle Peninsula in the U.S. state of Virginia; the peninsula is bordered by the Rappahannock River on the north and King and Queen County on the south. As of the 2020 census, the population was 10,599. ...
, in 1992 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Fayette County, Kentucky Fayette County is located in the central part of the U.S. state of Kentucky. As of the 2020 census, the population was 322,570, making it the second-most populous county in the commonwealth. Its territory, population and government are coextens ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2016 *
Fresno County, California Fresno County (), officially the County of Fresno, is a county located in the central portion of the U.S. state of California. As of the 2020 Census, the population was 1,008,654. The county seat is Fresno, the fifth-most populous city in Cali ...
, in 1996 and 2016 *
Gladwin County, Michigan Gladwin County is a county located in the U.S. state of Michigan. As of the 2020 Census, the population was 25,386. The county seat is Gladwin. History Prehistory Gladwin County is a headwaters area. Most of the water that flows out of the co ...
, in 2012 and 2020 *
Gloucester County, New Jersey Gloucester County () is a county located in the U.S. state of New Jersey. As of the 2020 U.S. census, the county's population was 302,294. Gloucester County is located approximately southeast of Philadelphia and northwest of Atlantic City. I ...
, in 2000 and 2004 *
Grand County, Utah Grand County is a county on the east central edge of the U.S. state of Utah, United States. As of the 2010 United States Census, the population was 9,225. Its county seat and largest city is Moab. History Evidence of indigenous occupation up t ...
, in
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
and
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
*
Guilford County, North Carolina Guilford County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population is 541,299, making it the third-most populous county in North Carolina. The county seat, and largest municipality, is Greensboro. Si ...
, in 2004 and 2016 *
Gunnison County, Colorado Gunnison County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 16,918. The county seat is Gunnison. The county was named for John W. Gunnison, a United States Army officer and captain in the Army ...
, in 2004 and 2016 *
Hill County, Montana Hill County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 16,309. Its county seat is Havre. It lies along the United States border with Canada, abutting Alberta and Saskatchewan. Part of its terri ...
, in 1988 and 2020 *
Hillsborough County, Florida Hillsborough County is located in the west central portion of the U.S. state of Florida. In the 2020 census, the population was 1,459,762, making it the fourth-most populous county in Florida and the most populous county outside the Miami metrop ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2016 *
Houston County, Minnesota Houston County is a county in the U.S. state of Minnesota. At the 2020 census, the population was 18,843. Its county seat is Caledonia. Houston County is included in the La Crosse–Onalaska metropolitan statistical area. History The area c ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Island County, Washington Island County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 86,857. Its county seat is Coupeville, while its largest city is Oak Harbor. The county's name reflects the fact that it is compose ...
, in
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
and 2016 *
Jefferson County, Iowa Jefferson County is a county located in the U.S. state of Iowa. As of the 2020 United States Census, the population was 15,663. The county seat is Fairfield. The county was formed in January 1839, and was named for U.S. President Thomas Jeffers ...
, in 2004 and 2020 *
Jo Daviess County, Illinois Jo Daviess County () is the northwesternmost county in the U.S. state of Illinois. According to the 2010 census, it had a population of 22,678. Its county seat is Galena. Jo Daviess County is part of the Tri-State Area and is located near Du ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2020 *
Kankakee County, Illinois Kankakee County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 113,449. Its county seat is Kankakee. Kankakee County comprises the Kankakee, IL Metropolitan Statistical Area. History St ...
, in 2012 and 2020 *
Kennebec County, Maine Kennebec County is a county located in the South-central portion of the U.S. state of Maine. At the 2020 census, the population was 123,642. Its county seat is Augusta, the state capital. The county was established on February 20, 1799, from p ...
, in 2000 and 2004 *
Lake County, Illinois Lake County is situated in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat ...
, in 1992 and 2016 *
Larimer County, Colorado Larimer County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 359,066. The county seat and most populous city is Fort Collins. The county was named for William Larimer, Jr., the founder of Denver. ...
, in
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
and 2016 *
Latah County, Idaho Latah County ( ) is a county located in the north central region of the U.S. state of Idaho. As of the 2020 census, the population was 39,517. The county seat and largest city is Moscow, the home of the University of Idaho, the state's flagsh ...
, in 1988 and 2016 *
Lenawee County, Michigan Lenawee County ( ') is a County (United States), county located in the U.S. state of Michigan. As of the 2020 United States Census, the population was 99,423. The county seat is Adrian, Michigan, Adrian. The county was created in 1822, from terri ...
, in 2012 and 2020 *
Lincoln County, Maine Lincoln County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 35,237. Its seat is Wiscasset. The county was founded in 1760 by the Massachusetts General Court from a portion of York County, Massachus ...
, in 2004 and 2016 *
Lincoln County, Wisconsin Lincoln County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 28,415. Its county seat is Merrill. The county was created in 1875 and named after President Abraham Lincoln. Lincoln County comprises ...
, in 1988 and 2020 *
Luna County, New Mexico Luna County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 25,095. Its county seat is Deming. This county abuts the Mexican border. Luna County comprises the Deming, NM Micropolitan Statistical ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Madison County, New York Madison County is a county located in the U.S. state of New York. As of the 2020 census, the population was 68,016. Its county seat is Wampsville. The county is named after James Madison, the fourth president of the United States, and was fir ...
, 1992 and 2020 *
Manistee County, Michigan Manistee County is a county located in the U.S. state of Michigan. As of the 2020 Census, the population was 25,032. The county seat is Manistee. The name "Manistee" is from an Ojibwe word first applied to the principal river of the county. Th ...
, in 2000 and 2020 *
Marion County, Oregon Marion County is one of the 36 counties in the U.S. state of Oregon. The population was 345,920 at the 2020 census, making it the fifth-most populous county in Oregon. The county seat is Salem, which is also the state capital of Oregon. The ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
*
Marshall County, Iowa Marshall County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 40,105. The county seat is Marshalltown. The county was formed on January 13, 1846, and named after John Marshall, Chief Justice of the Uni ...
, in 1988 and 2020 *
Marshall County, South Dakota Marshall County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 4,306. Its county seat is Britton. The county was created on May 2, 1885, and was named for Marshall Vincent, who homesteaded near Andove ...
, in 1988 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Mason County, Illinois Mason County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666. Its county seat is Havana. The county is named in honor of George Mason, a member of the Virginia legislature who campaigned f ...
, in 2012 and 2020 *
McDonough County, Illinois McDonough County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 32,612. Its county seat is Macomb. The Macomb, IL Micropolitan Statistical Area includes all of McDonough County. History McDo ...
, in 2012 and 2020 *
Menominee County, Michigan Menominee County ( ) is a county located in the Upper Peninsula in the U.S. state of Michigan. As of the 2020 Census, the population was 23,502. The county seat is Menominee. The county's name comes from an American Indian word meaning "wild r ...
, in 2012 and 2020 *
Monroe County, Indiana Monroe County is a county in the U.S. state of Indiana. In 1910 the US Census Bureau calculated the nation's mean population center to lie in Monroe County. The population was 137,974 at the 2010 United States Census. The county seat is Bloomin ...
, in 2004 and 2016 *
Monroe County, Michigan Monroe County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 154,809. The largest city and county seat is Monroe. The county was established as the second county (after Wayne County) in the Michigan Ter ...
, in 2000 and 2020 *
Monroe County, Wisconsin Monroe County is a county (United States), county in the U.S. state of Wisconsin. As of the 2020 United States census, 2020 census, the population was 46,274. Its county seat is Sparta, Wisconsin, Sparta. Geography According to the United Sta ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2020 *
Montgomery County, Virginia Montgomery County is a county located in the Valley and Ridge area of the U.S. state of Virginia. As population in the area increased, Montgomery County was formed in 1777 from Fincastle County, which in turn had been taken from Botetourt Count ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2016 *
Northampton County, Pennsylvania Northampton County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 312,951. Its county seat is Easton. The county was formed in 1752 from parts of Bucks County. Its namesake was Northamptonshire, En ...
, in 2000 and 2004. *
Oconto County, Wisconsin Oconto County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 38,965. Its county seat is Oconto. The county was established in 1851. Oconto County is part of the Green Bay, WI Metropolitan Statistical ...
, in 2012 and 2020 *
Oneida County, Wisconsin Oneida County is a county in the state of Wisconsin, United States. At the 2020 census, the population was 37,845. Its county seat is Rhinelander. History Oneida County was formed in 1887 from sections of Lincoln County. It was named after ...
, in 2012 and 2020 *
Orange County, New York Orange County is a county located in the U.S. state of New York. As of the 2020 census, the population was 401,310. The county seat is Goshen. This county was first created in 1683 and reorganized with its present boundaries in 1798. Orange ...
, in 1992 and 2020 *
Orange County, Vermont Orange County is a county located in the U.S. state of Vermont. As of the 2020 census, the population was 29,277. Its shire town (county seat) is the town of Chelsea. Orange County was organized on February 2, 1781, as an original county with ...
, in 2004 and 2016 *
Orleans County, Vermont Orleans County is a county located in the northeastern part of the U.S. state of Vermont. As of the 2020 census, the population was 27,393. Its county seat is the city of Newport. The county was created in 1792 and organized in 1799. As in t ...
, in 2004 and 2016 *
Oswego County, New York Oswego County is a county in the U.S. state of New York. As of the 2020 census, the population was 117,525. The county seat is Oswego. The county name is from a Mohawk-language word meaning "the pouring out place", referring to the point at ...
, in 1992 and 2020 *
Penobscot County, Maine Penobscot County is a county in the U.S. state of Maine, named for the Penobscot Nation on Wabanakik. As of the 2020 census, the population was 152,199. Its county seat is Bangor. The county was established on February 15, 1816, from part of ...
, in 2004 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Pike County, Mississippi Pike County is a county located on the southwestern border of the U.S. state of Mississippi. As of the 2020 census, the population was 40,324. The county seat is Magnolia. Pike County is named for explorer Zebulon Pike. Pike County is part of ...
, in 1980 and 2016 *
Pitt County, North Carolina Pitt County is a county located in the inner banks (northeastern part) of the U.S. state of North Carolina. As of the 2020 census, the population was 170,243, making it the fourteenth-most populous county in North Carolina. Its county seat is ...
, in
1996 File:1996 Events Collage.png, From left, clockwise: A Centennial Olympic Park bombing, bomb explodes at Centennial Olympic Park in Atlanta, set off by a radical Anti-abortion violence, anti-abortionist; The center fuel tank explodes on TWA Flight 8 ...
and 2016 *
Porter County, Indiana Porter County is a county in the U.S. state of Indiana. As of 2020, the population was 173,215, making it the 10th most populous county in Indiana. The county seat is Valparaiso. The county is part of Northwest Indiana, as well as the Chicago m ...
, in 1992 and 2020 *
Presque Isle County, Michigan Presque Isle County ( ') is a county in the Lower Peninsula of the U.S. state of Michigan. As of the 2020 Census, the population was 12,982. The county seat is Rogers City. The county was authorized by state legislative action on April 1, 184 ...
, in 2012 and 2020 *
Racine County, Wisconsin Racine County (, sometimes also ) is a county in southeastern Wisconsin. As of the 2020 census, its population was 197,727, making it Wisconsin's fifth-most populous county. Its county seat is Racine. The county was founded in 1836, then a part ...
, in 1988 and 2020 *
Radford, Virginia Radford (formerly Lovely Mount, Central City, English Ferry and Ingle's Ferry) is an independent city in the U.S. state of Virginia. As of 2020, the population was 16,070 by the United States Census Bureau. For statistical purposes, the Bureau ...
, in 1980 and 2016 *
Ransom County, North Dakota Ransom County is a County (United States), county in the U.S. state of North Dakota. As of the 2020 United States census, 2020 census, the population was 5,703. Its county seat is Lisbon, North Dakota, Lisbon. History The Dakota Territory legis ...
, in 1988 and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
Rensselaer County, New York Rensselaer County is a county in the U.S. state of New York. As of the 2020 census, the population was 161,130. Its county seat is Troy. The county is named in honor of the family of Kiliaen van Rensselaer, the original Dutch owner of the l ...
, in 2000 and 2004 *
Riverside County, California Riverside County is a County (United States), county located in the southern California, southern portion of the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 2,418,185, making it the fourth-most ...
, in 1996 and 2016 *
Rockingham County, New Hampshire Rockingham County is a county in the U.S. state of New Hampshire. At the 2020 census, the population was 314,176, making it New Hampshire's second-most populous county. The county seat is Brentwood. Rockingham County is part of the Boston-Cam ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
*
Rockland County, New York Rockland County is the southernmost county on the west side of the Hudson River in the U.S. state of New York. It is part of the New York metropolitan area. It is about from the Bronx at their closest points. The county's population, as of t ...
, in 2000 and 2016 *
Routt County, Colorado Routt County is a county located in the U.S. state of Colorado. As of the 2020 United States Census, 2020 census, the population was 24,829. The county seat is Steamboat Springs, Colorado, Steamboat Springs. Routt County comprises the Steamboat ...
, in 2004 and 2016 *
Sandusky County, Ohio Sandusky County is a county located in the northwestern part of the U.S. state of Ohio. It is southeast of the Toledo Metropolitan Area. As of the 2020 census, the population was 58,896. Its county seat is Fremont. The county was formed on Fe ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and
2020 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of events, COVID- ...
*
San Diego County, California San Diego County (), officially the County of San Diego, is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the fi ...
, in 1996 and 2016 *
San Luis Obispo County, California San Luis Obispo County (), officially the County of San Luis Obispo, is a County (United States), county on the Central Coast (California), Central Coast of California. As of the 2020 United States Census, 2020 census, the population was 282, ...
, in 1996 and 2016 *
Sargent County, North Dakota Sargent County is a county in the U.S. state of North Dakota. Its county seat is Forman, and its most populous city is Gwinner. The county is named in honor of Homer E. Sargent, a 19th-century general manager of the Northern Pacific Railroad C ...
, in 1988 and 2020 *
Sauk County, Wisconsin Sauk County is a county in Wisconsin. It is named after a large village of the Sauk people. As of the 2020 census, the population was 65,763. Its county seat and largest city is Baraboo. The county was created in 1840 from Wisconsin Territory a ...
, in 2000 and 2004. *
Schuyler County, Illinois Schuyler County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 7,544. Its county seat is Rushville. History Schuyler County was formed in 1825 out of Pike and Fulton counties. It is named for P ...
, in 2012 and 2020 *
Seneca County, New York Seneca County is located in the U.S. state of New York. As of the 2020 census, the population was 33,814. The county seat is Waterloo. It became a one county in 1822, which currently remains in effect and uses one locations as county seats a ...
, in 2000 and 2020 *
Spencer County, Indiana Spencer County is a county located in the U.S. state of Indiana. As of the 2010 census, the population was 20,952. The county seat is Rockport. Despite not being in the Owensboro Metropolitan Area, the entire riverfront of the city of Owensbo ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2020 *
St. Joseph County, Indiana St. Joseph County, commonly called St. Joe County by residents, is a county located in the U.S. state of Indiana. As of the 2020 census, the population was 272,912, making it the fifth-most populous county in Indiana. Formed in 1830, it was n ...
, in 2000 and 2016 *
Stark County, Ohio Stark County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 374,853. Its county seat is Canton. The county was created in 1808 and organized the next year. It is named for John Stark, an officer in th ...
, in 2004 and 2020 *
Starke County, Indiana Starke County is a county in the U.S. state of Indiana. As of the 2010 United States Census, the population was 23,363. The county seat is Knox. History The Indiana State Legislature passed an omnibus county bill on 7 February 1835 that authori ...
, in 2012 and 2020 *
Sullivan County, New York Sullivan County is a county in the U.S. state of New York. As of the 2020 census, the population was 78,624. The county seat is Monticello. The county's name honors Major General John Sullivan, who was labeled at the time as a hero in the Am ...
, in 2000 and 2020 *
Sumter County, Georgia Sumter County is a county located in the west- central portion of the U.S. state of Georgia. As of the 2010 census, its population was 32,819. The county seat is Americus. The county was created on December 26, 1831. Sumter County is part of ...
, in 1980 and 2016 *
Teton County, Wyoming Teton County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 23,331. Its county seat is Jackson. Its west boundary line is also the Wyoming state boundary shared with Idaho and the southern tip o ...
, in 2004 and 2016 *
Traverse County, Minnesota Traverse County ( ) is a County (United States), county in the U.S. state of Minnesota. As of the 2020 United States census, 2020 census, the population was 3,360, making it the least-populous county in Minnesota. Its county seat is Wheaton, Mi ...
, in 1988 and 2020 *
Tuscarawas County, Ohio Tuscarawas County ( ) is a county located in the northeastern part of the U.S. state of Ohio. As of the 2020 census, the population was 93,263. Its county seat is New Philadelphia. Its name is a Delaware Indian word variously translated as "ol ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2020 *
Union County, Iowa Union County is a county located in the southern part of the U.S. state of Iowa. As of the 2020 census, the population was 12,138. The county seat is Creston. Organized at a time of tensions before the Civil War, the county was named in 1853 ...
, in 1988 and 2020 *
Val Verde County, Texas Val Verde County is a county located on the southern Edwards Plateau in the U.S. state of Texas. The 2020 population is 47,586. Its county seat is Del Rio. In 1936, Val Verde County received Recorded Texas Historic Landmark number 5625 to co ...
, in 2016 and 2020 *
Vanderburgh County, Indiana Vanderburgh County is a County (United States), county in the U.S. state of Indiana. As of 2010, the population was 179,703. The county seat is in Evansville, Indiana, Evansville. While Vanderburgh County was the seventh-largest county in 2010 p ...
, in 2012 and 2020 *
Wake County, North Carolina Wake County is located in the U.S. state of North Carolina. In the 2020 census, its population was 1,129,410, making it North Carolina's most-populous county. From July 2005 to July 2006, Wake County was the 9th-fastest growing county in the U ...
, in 1996 and 2016 *
Warren County, New York Warren County is a county in the U.S. state of New York. As of the 2020 census, the population was 65,737. The county seat is Queensbury. The county is named in honor of General Joseph Warren, an American Revolutionary War hero of the Battl ...
, in 1992 and 2020 *
Washington County, New York Washington County is a county in the U.S. state of New York. As of the 2020 census, the population was 61,302. The county seat is Fort Edward. The county was named for U.S. President George Washington. Washington County is part of the Glen ...
, in 1992 and 2020 *
Watonwan County, Minnesota Watonwan County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 11,253. Its county seat is St. James. History In 1849, the recently organized Minnesota Territory legislature authorized the creation of nin ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2020 *
Whitman County, Washington Whitman County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 47,973. The county seat is Colfax, and its largest city is Pullman. The county was formed from Stevens County in 1871. It is named ...
, in
2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...
and 2016 *
Williamsburg, Virginia Williamsburg is an Independent city (United States), independent city in the Commonwealth (U.S. state), Commonwealth of Virginia. As of the 2020 United States census, 2020 census, it had a population of 15,425. Located on the Virginia Peninsula ...
, in 2004 and 2016 *
Winnebago County, Wisconsin Winnebago County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 171,730. Its county seat is Oshkosh. It was named for the historic Winnebago people, a federally recognized Native American tribe now known ...
, in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
and 2020 *
Winona County, Minnesota Winona County is a county in the U.S. state of Minnesota. As of the 2020 census, its population was 49,671. Its county seat is Winona. Winona County comprises the Winona, MN Micropolitan Statistical Area. History The Wisconsin Territory wa ...
, in 2000 and 2004


Notes


References

{{reflist Elections in the United States Election bellwether