The 2018 United States House of Representatives elections in Oklahoma were held on November 6, 2018, to elect the five

U.S. representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the lower chamber of the United States Congress, with the Senate being the upper chamber. Together they ...

from the

state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...

of Oklahoma, one from each of the state's five

congressional districts Congressional districts, also known as electoral districts and legislative districts, electorates, or wards in other nations, are divisions of a larger administrative region that represent the population of a region in the larger congressional bod ...

. The elections coincided with other elections to the House of Representatives,

elections An election is a formal group decision-making process by which a population chooses an individual or multiple individuals to hold Public administration, public office. Elections have been the usual mechanism by which modern representative ...

to the

United States Senate The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and pow ...

and various

and

local elections In many parts of the world, local elections take place to select office-holders in local government, such as mayors and councillors. Elections to positions within a city or town are often known as "municipal elections". Their form and conduct vary ...

. Primary elections were held on June 26 and runoff elections were held two months later on August 28. The state congressional delegation changed from 5-0 majority for Republicans to a 4-1 Republican majority. This is the first time since the

2012 election This national electoral calendar for 2012 lists the national/ federal elections held in 2012 in all sovereign states and their dependent territories. By-elections are excluded, though national referendums are included. January *3–4 January: ...

that Democrats held a seat in the state, and as of 2022, the last election in which Democrats won any house race in Oklahoma.

Results summary

Statewide

District

Results of the 2018 United States House of Representatives elections in Oklahoma by district:

District 1

The 1st district is located in the Tulsa metropolitan area and includes Creek,

Rogers Rogers may refer to: Places Canada *Rogers Pass (British Columbia) * Rogers Island (Nunavut) United States * Rogers, Arkansas, a city * Rogers, alternate name of Muroc, California, a former settlement * Rogers, Indiana, an unincorporated communit ...

Tulsa Tulsa () is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa Metropolitan Area, a region with ...

, Wagoner and

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

counties. The incumbent was Republican

Jim Bridenstine James Frederick Bridenstine (born June 15, 1975) is an American military officer and politician who served as the 13th administrator of the National Aeronautics and Space Administration (NASA). Bridenstine was the United States representative f ...

, who had represented the district since 2013. He was re-elected unopposed in the general election and with 81% of the vote in the Republican primary. During his initial election in 2012, Bridenstine self-imposed a three term limit. Bridenstine has confirmed he will honor his term-limit pledge. Bridenstine has become Administrator of

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...

in the Donald Trump administration.

Republican primary

Candidates

Declared

* Andy Coleman, veteran *

Nathan Dahm Nathan Ryan Dahm (born January 27, 1983) is an American politician who has served as the Oklahoma State Senator for the 33rd district since 2012. Prior to holding office, Dahm worked as a missionary in Romania and was a Tea Party activist in T ...

, State Senator * Tim Harris, Tulsa district attorney * Kevin Hern, businessman * Danny Stockstill

Results

Runoff

=Polling

=Results

Democratic primary

;Declared * Amanda Douglas, business analyst, energy consultant and member of the Cherokee Nation * Tim Gilpin, attorney, and former Oklahoma State Board of Education member

Results

Runoff results

General election

Predictions

Polling

Results

District 2

The 2nd district is located in the regions of

Green Country Green Country, sometimes referred to as Northeast Oklahoma, is the northeastern portion of the U.S. state of Oklahoma, which lies west of the northern half of Arkansas, the southwestern corner the way of Missouri, and south of Kansas. Alternate d ...

and

Kiamichi Country Choctaw Country is the Oklahoma Department of Tourism and Recreation's official tourism designation for Southeastern Oklahoma. The name was previously Kiamichi Country until changed in honor of the Choctaw Nation headquartered there. The current ...

and includes the city of Muskogee and numerous sparsely populated counties. The incumbent is Republican

Markwayne Mullin Mark Wayne "Markwayne" Mullin (born July 26, 1977) is an American businessman, former professional mixed martial arts fighter, and politician serving as the junior United States senator from Oklahoma since 2023. A member of the Republican Party ...

, who has represented the district since 2013. He was re-elected with 71% of the vote in 2016. Mullin had pledged to serve only three terms when he was first elected in 2012. During the 2016 campaign, Mullin stated he was reassessing his pledge, and refused to rule out running again in 2018.

Republican primary

Candidates

=Declared

= *

, incumbent * Brian Jackson * Jarrin Jackson, veteran, conservative activist, and candidate for the seat in 2016 * John McCarthy

Results

Endorsements

Democratic primary

Results

Runoff results

General election

Predictions

Polling

Results

District 3

The 3rd district is located in

Western Oklahoma On a simple east/west basis, Western Oklahoma is popularly considered that part of the state west of I-35. I-35 creates a north/south line through the approximate center of the main body of the state (i.e., without regard for the Oklahoma Panhandle ...

. The largest district in Oklahoma and one of the largest in the country, it includes the Oklahoma Panhandle,

Ponca City Ponca City ( iow, Chína Uhánⁿdhe) is a city in Kay County in the U.S. state of Oklahoma. The city was named after the Ponca tribe. Ponca City had a population of 25,387 at the time of the 2010 census- and a population of 24,424 in the 2020 ...

and the city of Stillwater as well as the Osage Nation. The incumbent is Republican

Frank Lucas Frank Lucas (September 9, 1930 – May 30, 2019) was an American drug trafficker who operated in Harlem, New York City, during the late 1960s and early 1970s. He was known for cutting out middlemen in the drug trade and buying heroin directly ...

, who has represented the district since 2003 and previously represented the 6th district from 1994 to 2003. He was re-elected with 78% of the vote in 2016.

Republican primary

, incumbent

Democratic primary

Results

General election

Predictions

Polling

Results

District 4

The 4th district is located in

South Central Oklahoma South Central Oklahoma is an amorphous region in the state of Oklahoma, perhaps encompassing 10 counties. It is centered on the Arbuckle Mountains, an ancient, eroded range traversing some across the region, and surrounded by rivers and lakes, ...

and includes the suburbs of Oklahoma City, such as the counties of

Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...

, Comanche and

Cleveland Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. ...

and numerous other sparsely populated counties. The incumbent is Republican

Tom Cole Thomas Jeffery Cole (born April 28, 1949) is the U.S. representative for , serving since 2003. He is a member of the Republican Party and serves as Deputy Minority Whip. The chairman of the National Republican Congressional Committee (NRCC) fr ...

, who has represented the district since 2003. He was re-elected with 70% of the vote in 2016.

Republican primary

Results

Democratic primary

Results

Runoff results

General election

Predictions

Polling

Results

District 5

The 5th district is located in

Central Oklahoma Central Oklahoma is the geographical name for the central region of the U.S. state of Oklahoma. It is also known by the Oklahoma Department of Tourism designation, Frontier Country, defined as the twelve-county region including Canadian, Grady, ...

and centered around the state capital,

Oklahoma City Oklahoma City (), officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, a ...

, and the surrounding areas such as Edmond and

Shawnee The Shawnee are an Algonquian-speaking indigenous people of the Northeastern Woodlands. In the 17th century they lived in Pennsylvania, and in the 18th century they were in Pennsylvania, Ohio, Indiana and Illinois, with some bands in Kentucky a ...

. The incumbent was Republican Steve Russell, who had represented the district since 2015. He was re-elected with 57% of the vote in 2016. He was defeated by Democratic challenger

Kendra Horn Kendra Suzanne Horn (born June 9, 1976) is an American lawyer and politician who served as the U.S. representative for Oklahoma's 5th congressional district from 2019 to 2021. A member of the Democratic Party, her district included almost all ...

in the 2018 election.

Republican primary

Results

Democratic primary

Results

Runoff results

General election

Predictions

Polling

Results

References

External links

Candidates
at

Vote Smart Vote Smart, formerly called Project Vote Smart, is a non-profit, non-partisan research organization that collects and distributes information on candidates for public office in the United States. It covers candidates and elected officials in s ...

Candidates
at Ballotpedia
Campaign finance
at FEC
Campaign finance
at

OpenSecrets OpenSecrets is a nonprofit organization based in Washington, D.C., that tracks data on campaign finance and lobbying. It was created from a merger of the Center for Responsive Politics (CRP) and the National Institute on Money in Politics (NIMP) ...

;Official campaign websites for first district candidates
Tim Gilpin (D) for CongressKevin Hern (R) for Congress
;Official campaign websites for second district candidates
Markwayne Mullin (R) for CongressJason Nichols (D) for Congress
;Official campaign websites for third district candidates
Frank Lucas (R) for CongressFrankie Robbins (D) for Congress
;Official campaign websites for fourth district candidates
Mary Brannon (D) for CongressTom Cole (R) for Congress
;Official campaign websites for fifth district candidates
Steve Russell (R) for CongressKendra Horn (D) for Congress
{{2018 United States elections

United States House of Representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the lower chamber of the United States Congress, with the Senate being the upper chamber. Together they ...

Oklahoma

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