The 2018 United States House of Representatives elections in Iowa were held on November 6, 2018, to elect the four U.S. representatives from the State of Iowa, one from each of the state's four congressional districts. The elections coincided with the gubernatorial election, as well as other elections to the House of Representatives, elections to the United States Senate, and various state and local elections. The state congressional delegation flipped from a 3–1 Republican majority to a 3–1 Democratic majority. The Democrats had last won the majority of Iowa's seats in the 2010 elections.

Overview

Statewide

By district

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

2018 United States House of Representatives elections in Iowa

District 1

Incumbent Republican Rod Blum, who had represented the district since 2015, ran for re-election. He was re-elected with 54% of the vote in 2016. The district had a PVI of D+1.

2018 United States House of Representatives elections in Iowa

The 1st district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 56% to 43% margin in 2012.

2018 United States House of Representatives elections in Iowa

Republican primary

Candidates

Nominee

Rod Blum, incumbent U.S. Representative

Results

Democratic primary

Candidates

Nominee

Abby Finkenauer, state representative

Eliminated in primary

Thomas Heckroth, former staffer for United States Senator Tom Harkin

George Ramsey III, former military recruiter

Courtney Rowe, engineer and Bernie Sanders delegate at the 2016 state convention

Declined

Jeff Danielson, state senator

Liz Mathis, state senator

Brent Oleson, Linn County Supervisor

Steve Sodders, former state senator

Stacey Walker, Linn County Supervisor

Endorsements

Results

Libertarian primary

Candidates

Nominee

Troy Hageman, activist

Green primary

Candidates

Nominee

Henry Gaff, co-chair of the Iowa Green Party

Gaff was only 18, meaning he would not have met the U.S. Constitution's required minimum age of 25 to be elected to the House of Representatives.

General election

Debates

Complete video of debate, October 5, 2018

Complete video of debate, October 16, 2018

Polling

Predictions

Results

Finkenauer went on to flip the district, being one of many victories in swing districts for Democrats in a blue wave election.

District 2

Democratic Representative Dave Loebsack, who has represented the district since 2007, was reelected to a sixth term with 54% of the vote in 2016. Loebsack ran for reelection.

The 2nd district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 56% to 43% margin in 2012.

Democratic primary

Candidates

Nominee

Dave Loebsack, incumbent U.S. Representative

Results

Republican primary

Candidates

Nominee

Christopher Peters, thoracic surgeon and nominee for this seat in 2016

Eliminated in primary

Ginny Caligiuri, businesswoman (write-in)

Declined

Bobby Kaufmann, state representative

Results

Independents

Daniel Clark

General election

Polling

Predictions

Results

District 3

Incumbent Republican David Young, who had represented the district since 2015, ran for re-election. He was re-elected with 53% of the vote in 2016. The district had a PVI of D+1.

The 3rd district went for Donald Trump in the 2016 presidential election with a 49% to 45% margin, after voting for Barack Obama with a 51% to 47% margin in 2012.

Republican primary

Candidates

Nominee

David Young, incumbent U.S. Representative

Results

Democratic primary

After Greenfield's campaign manager was fired for forging signatures on nominating papers, she attempted to re-collect the 1,790 signatures necessary to make the ballot, but did not get enough signatures.