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Democratic Party primaries in Iowa, 2024
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Democratic Party primaries, 2024 |
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Primary Date |
June 4, 2024 |
Federal elections |
Democratic primaries for U.S. House |
State party |
Democratic Party of Iowa |
State political party revenue |
This page focuses on the Democratic primaries that took place in Iowa on June 4, 2024.
A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. In Iowa, state law provides for a closed primary where every voter must be affiliated with a party in order to participate in its primary. However, a voter can change his or her political party affiliation on Election Day, creating what is effectively an open primary.[1]
For information about which offices are nominated via primary election, see this article.
Federal elections
U.S. House
The U.S. House of Representatives elections in Iowa were on November 5, 2024. Voters elected four candidates to serve in the U.S. House from each of the state's four U.S. House districts. The primary was June 4, 2024. The filing deadline was March 15, 2024.
To see a full list of candidates in the primary in each district, click "Show more" below.District 1

District 2

District 3


District 4


State elections
State Senate
- See also: Iowa State Senate elections, 2024
Iowa State Senate elections, 2024 |
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Other |
District 2 |
The Democratic primary was canceled. |
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District 4 |
The Democratic primary was canceled. |
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District 6 |
The Democratic primary was canceled. |
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District 8 |
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District 10 |
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District 12 |
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District 14 |
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District 16 |
The Republican primary was canceled. |
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District 18 |
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The Republican primary was canceled. |
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District 20 |
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District 22 |
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District 24 |
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District 26 |
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District 28 |
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District 30 |
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District 32 |
The Democratic primary was canceled. |
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District 34 |
The Democratic primary was canceled. |
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District 36 |
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District 38 |
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District 40 |
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District 42 |
The Democratic primary was canceled. |
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District 44 |
The Democratic primary was canceled. |
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District 46 |
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District 48 |
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District 50 |
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House of Representatives
Iowa House of Representatives elections, 2024 |
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Office | ![]() |
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Other |
District 1 |
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District 2 |
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District 3 |
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District 4 |
The Democratic primary was canceled. |
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District 5 |
The Democratic primary was canceled. |
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District 6 |
The Democratic primary was canceled. |
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District 7 |
The Democratic primary was canceled. |
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District 8 |
The Democratic primary was canceled. |
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District 9 |
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District 10 |
The Democratic primary was canceled. |
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District 11 |
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District 12 |
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District 13 |
The Democratic primary was canceled. |
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District 14 |
The Democratic primary was canceled. |
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District 15 |
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District 16 |
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District 17 |
The Democratic primary was canceled. |
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District 18 |
The Democratic primary was canceled. |
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District 19 |
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District 20 |
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District 21 |
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District 22 |
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District 23 |
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District 24 |
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District 25 |
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District 26 |
The Democratic primary was canceled. |
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District 27 |
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District 28 |
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District 29 |
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The Republican primary was canceled. |
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District 30 |
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The Republican primary was canceled. |
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District 31 |
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The Republican primary was canceled. |
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District 32 |
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The Republican primary was canceled. |
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District 33 |
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The Republican primary was canceled. |
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District 34 |
John Campbell Jr. |
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District 35 |
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District 36 |
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The Republican primary was canceled. |
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District 37 |
The Democratic primary was canceled. |
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District 38 |
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District 39 |
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The Republican primary was canceled. |
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District 40 |
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District 41 |
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District 42 |
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District 43 |
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District 44 |
The Republican primary was canceled. |
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District 45 |
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District 46 |
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District 47 |
The Democratic primary was canceled. |
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District 48 |
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District 49 |
The Republican primary was canceled. |
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District 50 |
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The Republican primary was canceled. |
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District 51 |
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District 52 |
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The Republican primary was canceled. |
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District 53 |
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District 54 |
The Democratic primary was canceled. |
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District 55 |
The Democratic primary was canceled. |
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District 56 |
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District 57 |
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District 58 |
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District 59 |
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District 60 |
The Democratic primary was canceled. |
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District 61 |
The Republican primary was canceled. |
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District 62 |
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The Republican primary was canceled. |
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District 63 |
The Democratic primary was canceled. |
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District 64 |
The Democratic primary was canceled. |
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District 65 |
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District 66 |
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District 67 |
The Democratic primary was canceled. |
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District 68 |
The Democratic primary was canceled. |
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District 69 |
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District 70 |
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District 71 |
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The Republican primary was canceled. |
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District 72 |
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District 73 |
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The Republican primary was canceled. |
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District 74 |
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The Republican primary was canceled. |
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District 75 |
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The Republican primary was canceled. |
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District 76 |
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District 77 |
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The Republican primary was canceled. |
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District 78 |
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The Republican primary was canceled. |
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District 79 |
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The Republican primary was canceled. |
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District 80 |
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District 81 |
The Republican primary was canceled. |
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District 82 |
The Democratic primary was canceled. |
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District 83 |
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District 84 |
The Democratic primary was canceled. |
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District 85 |
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The Republican primary was canceled. |
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District 86 |
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The Republican primary was canceled. |
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District 87 |
The Democratic primary was canceled. |
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District 88 |
The Democratic primary was canceled. |
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District 89 |
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The Republican primary was canceled. |
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District 90 |
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The Republican primary was canceled. |
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District 91 |
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District 92 |
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District 93 |
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District 94 |
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District 95 |
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District 96 |
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District 97 |
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District 98 |
The Republican primary was canceled. |
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District 99 |
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District 100 |
The Democratic primary was canceled. |
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Voting information
- See also: Voting in Iowa
Context of the 2024 elections
Iowa Party Control: 1992-2025
Four years of Democratic trifectas • Eleven years of Republican trifectas
Scroll left and right on the table below to view more years.
Year | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Governor | R | R | R | R | R | R | R | D | D | D | D | D | D | D | D | D | D | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
Senate | D | D | D | D | D | R | R | R | R | R | R | R | R | S | S | D | D | D | D | D | D | D | D | D | D | R | R | R | R | R | R | R | R | R |
House | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | D | D | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
State party overview
Democratic Party of Iowa
- See also: Democratic Party of Iowa
State political party revenue
State political parties typically deposit revenue in separate state and federal accounts in order to comply with state and federal campaign finance laws.
The Democratic Party and the Republican Party maintain state affiliates in all 50 states, the District of Columbia, and select U.S. territories. The following map displays total state political party revenue per capita for the Democratic state party affiliates.
Pivot Counties
- See also: Pivot Counties by state
Thirty-one of 99 Iowa counties—31 percent—are Pivot Counties. Pivot Counties are counties that voted for Barack Obama (D) in 2008 and 2012 and for Donald Trump (R) in 2016. Altogether, the nation had 206 Pivot Counties, with most being concentrated in upper midwestern and northeastern states.
Counties won by Trump in 2016 and Obama in 2012 and 2008 | |||||||
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County | Trump margin of victory in 2016 | Obama margin of victory in 2012 | Obama margin of victory in 2008 | ||||
Allamakee County, Iowa | 24.15% | 4.17% | 14.25% | ||||
Boone County, Iowa | 13.69% | 6.64% | 7.63% | ||||
Bremer County, Iowa | 13.68% | 2.68% | 9.31% | ||||
Buchanan County, Iowa | 15.02% | 13.87% | 18.48% | ||||
Cedar County, Iowa | 17.78% | 4.59% | 9.64% | ||||
Cerro Gordo County, Iowa | 7.66% | 13.38% | 20.83% | ||||
Chickasaw County, Iowa | 22.94% | 11.07% | 20.74% | ||||
Clarke County, Iowa | 28.02% | 1.47% | 2.25% | ||||
Clayton County, Iowa | 22.78% | 7.03% | 17.17% | ||||
Clinton County, Iowa | 5.12% | 22.84% | 23.03% | ||||
Des Moines County, Iowa | 6.89% | 18.41% | 23.04% | ||||
Dubuque County, Iowa | 1.23% | 14.71% | 20.77% | ||||
Fayette County, Iowa | 19.36% | 11.96% | 16.60% | ||||
Floyd County, Iowa | 14.84% | 14.63% | 21.88% | ||||
Howard County, Iowa | 20.49% | 20.95% | 25.78% | ||||
Jackson County, Iowa | 19.27% | 16.89% | 24.39% | ||||
Jasper County, Iowa | 18.13% | 7.07% | 7.50% | ||||
Jefferson County, Iowa | 0.47% | 15.97% | 20.23% | ||||
Jones County, Iowa | 19.08% | 7.78% | 10.40% | ||||
Lee County, Iowa | 16.02% | 15.49% | 16.01% | ||||
Louisa County, Iowa | 28.37% | 0.64% | 4.25% | ||||
Marshall County, Iowa | 8.31% | 9.36% | 9.35% | ||||
Mitchell County, Iowa | 24.04% | 3.37% | 12.31% | ||||
Muscatine County, Iowa | 6.26% | 15.88% | 15.64% | ||||
Poweshiek County, Iowa | 6.53% | 9.35% | 11.75% | ||||
Tama County, Iowa | 20.28% | 7.43% | 12.19% | ||||
Union County, Iowa | 27.49% | 3.86% | 3.70% | ||||
Wapello County, Iowa | 20.60% | 11.88% | 13.53% | ||||
Webster County, Iowa | 21.52% | 5.84% | 8.51% | ||||
Winneshiek County, Iowa | 0.79% | 14.74% | 22.65% | ||||
Worth County, Iowa | 21.68% | 14.53% | 22.42% |
In the 2016 presidential election, Donald Trump (R) won Iowa with 51.1 percent of the vote. Hillary Clinton (D) received 41.7 percent. In presidential elections between 1848 and 2016, Iowa voted Republican 69.76 percent of the time and Democratic 30.23 percent of the time. In the five presidential elections between 2000 and 2016, Iowa voted Democratic three times and Republican the other two times.[2]
Presidential results by legislative district
The following table details results of the 2012 and 2016 presidential elections by state House districts in Iowa. Click [show] to expand the table. The "Obama," "Romney," "Clinton," and "Trump" columns describe the percent of the vote each presidential candidate received in the district. The "2012 Margin" and "2016 Margin" columns describe the margin of victory between the two presidential candidates in those years. The "Party Control" column notes which party held that seat heading into the 2018 general election. Data on the results of the 2012 and 2016 presidential elections broken down by state legislative districts was compiled by Daily Kos.[3][4]
In 2012, Barack Obama (D) won 61 out of 100 state House districts in Iowa with an average margin of victory of 19.1 points. In 2016, Hillary Clinton (D) won 35 out of 100 state House districts in Iowa with an average margin of victory of 18.8 points. Clinton won four districts controlled by Republicans heading into the 2018 elections. |
In 2012, Mitt Romney (R) won 39 out of 100 state House districts in Iowa with an average margin of victory of 13.3 points. In 2016, Donald Trump (R) won 65 out of 100 state House districts in Iowa with an average margin of victory of 24.5 points. Trump won 10 districts controlled by Democrats heading into the 2018 elections. |
2016 presidential results by state House district | |||||||
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District | Obama | Romney | 2012 Margin | Clinton | Trump | 2016 Margin | Party Control |
1 | 30.96% | 67.78% | R+36.8 | 22.23% | 73.81% | R+51.6 | R |
2 | 41.86% | 56.83% | R+15 | 27.53% | 67.70% | R+40.2 | R |
3 | 31.57% | 67.31% | R+35.7 | 20.73% | 74.78% | R+54.1 | R |
4 | 15.63% | 83.55% | R+67.9 | 12.95% | 81.67% | R+68.7 | R |
5 | 33.00% | 65.90% | R+32.9 | 22.28% | 73.69% | R+51.4 | R |
6 | 44.39% | 54.40% | R+10 | 32.54% | 62.36% | R+29.8 | R |
7 | 46.87% | 51.82% | R+5 | 31.96% | 62.86% | R+30.9 | R |
8 | 43.04% | 55.84% | R+12.8 | 28.52% | 67.11% | R+38.6 | R |
9 | 54.26% | 44.65% | D+9.6 | 39.33% | 55.29% | R+16 | D |
10 | 40.15% | 58.39% | R+18.2 | 25.64% | 69.78% | R+44.1 | R |
11 | 42.76% | 56.17% | R+13.4 | 30.87% | 64.40% | R+33.5 | R |
12 | 46.14% | 52.95% | R+6.8 | 30.92% | 64.32% | R+33.4 | R |
13 | 54.28% | 44.37% | D+9.9 | 42.30% | 52.03% | R+9.7 | D |
14 | 59.33% | 39.34% | D+20 | 47.69% | 47.27% | D+0.4 | D |
15 | 57.12% | 41.17% | D+16 | 41.89% | 51.48% | R+9.6 | D |
16 | 52.01% | 46.46% | D+5.5 | 41.84% | 51.76% | R+9.9 | R |
17 | 41.10% | 57.71% | R+16.6 | 25.76% | 70.01% | R+44.3 | R |
18 | 41.98% | 56.88% | R+14.9 | 28.11% | 67.52% | R+39.4 | R |
19 | 40.80% | 57.87% | R+17.1 | 36.54% | 56.73% | R+20.2 | R |
20 | 48.77% | 49.62% | R+0.9 | 35.39% | 59.04% | R+23.6 | R |
21 | 45.01% | 53.64% | R+8.6 | 29.35% | 65.17% | R+35.8 | R |
22 | 36.78% | 62.08% | R+25.3 | 29.64% | 65.50% | R+35.9 | R |
23 | 40.72% | 57.80% | R+17.1 | 27.37% | 66.81% | R+39.4 | R |
24 | 39.86% | 58.79% | R+18.9 | 25.77% | 69.86% | R+44.1 | R |
25 | 44.34% | 54.14% | R+9.8 | 34.15% | 59.72% | R+25.6 | R |
26 | 50.18% | 48.59% | D+1.6 | 39.62% | 53.52% | R+13.9 | D |
27 | 47.15% | 51.07% | R+3.9 | 30.50% | 64.42% | R+33.9 | R |
28 | 47.30% | 51.30% | R+4 | 31.76% | 62.81% | R+31.1 | R |
29 | 56.05% | 42.50% | D+13.6 | 40.78% | 53.23% | R+12.5 | D |
30 | 47.66% | 50.85% | R+3.2 | 38.47% | 54.84% | R+16.4 | R |
31 | 61.55% | 36.86% | D+24.7 | 49.75% | 43.99% | D+5.8 | D |
32 | 72.88% | 25.37% | D+47.5 | 63.69% | 30.28% | D+33.4 | D |
33 | 67.30% | 31.37% | D+35.9 | 59.50% | 34.55% | D+25 | D |
34 | 68.16% | 30.10% | D+38.1 | 60.44% | 33.19% | D+27.2 | D |
35 | 77.01% | 21.48% | D+55.5 | 70.40% | 23.46% | D+46.9 | D |
36 | 65.21% | 33.12% | D+32.1 | 63.13% | 29.46% | D+33.7 | D |
37 | 43.30% | 55.35% | R+12 | 42.10% | 50.50% | R+8.4 | R |
38 | 49.33% | 49.21% | D+0.1 | 42.85% | 49.84% | R+7 | R |
39 | 43.02% | 55.76% | R+12.7 | 43.93% | 48.99% | R+5.1 | R |
40 | 49.31% | 49.53% | R+0.2 | 50.25% | 43.32% | D+6.9 | D |
41 | 67.93% | 30.50% | D+37.4 | 69.25% | 24.10% | D+45.2 | D |
42 | 49.85% | 48.83% | D+1 | 51.15% | 42.19% | D+9 | R |
43 | 50.58% | 48.29% | D+2.3 | 52.50% | 41.03% | D+11.5 | R |
44 | 42.52% | 56.60% | R+14.1 | 44.97% | 47.76% | R+2.8 | R |
45 | 60.66% | 36.80% | D+23.9 | 57.79% | 31.85% | D+25.9 | D |
46 | 59.66% | 37.96% | D+21.7 | 57.22% | 33.12% | D+24.1 | D |
47 | 52.11% | 46.29% | D+5.8 | 38.31% | 54.96% | R+16.6 | R |
48 | 47.95% | 50.46% | R+2.5 | 36.50% | 56.98% | R+20.5 | R |
49 | 46.50% | 51.88% | R+5.4 | 36.62% | 55.49% | R+18.9 | R |
50 | 42.94% | 55.95% | R+13 | 30.36% | 64.36% | R+34 | R |
51 | 55.19% | 43.48% | D+11.7 | 35.67% | 58.91% | R+23.2 | R |
52 | 56.04% | 42.88% | D+13.2 | 37.76% | 56.73% | R+19 | D |
53 | 60.98% | 37.92% | D+23.1 | 47.69% | 46.65% | D+1 | D |
54 | 44.96% | 53.94% | R+9 | 32.11% | 62.71% | R+30.6 | R |
55 | 55.19% | 43.44% | D+11.8 | 43.51% | 50.62% | R+7.1 | R |
56 | 52.01% | 46.73% | D+5.3 | 34.91% | 59.80% | R+24.9 | R |
57 | 49.00% | 49.98% | R+1 | 37.25% | 57.49% | R+20.2 | R |
58 | 55.60% | 43.22% | D+12.4 | 37.06% | 57.82% | R+20.8 | R |
59 | 56.29% | 42.22% | D+14.1 | 51.94% | 40.87% | D+11.1 | D |
60 | 50.15% | 48.91% | D+1.2 | 45.19% | 48.75% | R+3.6 | R |
61 | 63.73% | 35.14% | D+28.6 | 52.34% | 42.07% | D+10.3 | D |
62 | 76.37% | 22.58% | D+53.8 | 62.14% | 32.64% | D+29.5 | D |
63 | 49.95% | 48.93% | D+1 | 39.04% | 55.06% | R+16 | R |
64 | 57.83% | 41.00% | D+16.8 | 40.27% | 53.42% | R+13.1 | D |
65 | 66.77% | 31.71% | D+35.1 | 61.58% | 31.29% | D+30.3 | D |
66 | 57.43% | 41.04% | D+16.4 | 53.11% | 39.91% | D+13.2 | D |
67 | 49.18% | 49.50% | R+0.3 | 47.22% | 45.74% | D+1.5 | R |
68 | 54.45% | 44.08% | D+10.4 | 48.20% | 44.50% | D+3.7 | R |
69 | 65.87% | 32.63% | D+33.2 | 52.73% | 40.24% | D+12.5 | D |
70 | 63.00% | 35.67% | D+27.3 | 53.85% | 39.20% | D+14.7 | D |
71 | 56.62% | 42.23% | D+14.4 | 48.02% | 46.57% | D+1.5 | D |
72 | 50.86% | 47.88% | D+3 | 34.92% | 59.56% | R+24.6 | R |
73 | 54.19% | 44.65% | D+9.5 | 43.25% | 51.15% | R+7.9 | R |
74 | 67.17% | 31.21% | D+36 | 69.14% | 24.89% | D+44.3 | D |
75 | 49.36% | 49.39% | R+0 | 34.09% | 60.12% | R+26 | R |
76 | 50.61% | 47.97% | D+2.6 | 40.64% | 53.90% | R+13.3 | R |
77 | 58.46% | 40.34% | D+18.1 | 53.49% | 39.62% | D+13.9 | D |
78 | 46.21% | 51.69% | R+5.5 | 34.06% | 60.08% | R+26 | R |
79 | 35.86% | 62.79% | R+26.9 | 25.96% | 67.84% | R+41.9 | R |
80 | 45.03% | 53.56% | R+8.5 | 27.04% | 68.71% | R+41.7 | R |
81 | 56.57% | 41.86% | D+14.7 | 39.52% | 55.89% | R+16.4 | D |
82 | 49.74% | 47.90% | D+1.8 | 36.54% | 57.76% | R+21.2 | D |
83 | 58.67% | 39.72% | D+19 | 40.42% | 53.35% | R+12.9 | D |
84 | 46.37% | 52.04% | R+5.7 | 30.59% | 63.23% | R+32.6 | R |
85 | 71.79% | 26.07% | D+45.7 | 74.26% | 19.90% | D+54.4 | D |
86 | 72.99% | 24.97% | D+48 | 72.34% | 21.06% | D+51.3 | D |
87 | 62.60% | 36.08% | D+26.5 | 48.53% | 45.49% | D+3 | D |
88 | 50.88% | 47.86% | D+3 | 35.94% | 58.76% | R+22.8 | R |
89 | 63.19% | 35.77% | D+27.4 | 52.47% | 40.86% | D+11.6 | D |
90 | 73.49% | 24.97% | D+48.5 | 57.98% | 34.93% | D+23.1 | D |
91 | 57.61% | 40.97% | D+16.6 | 43.65% | 49.75% | R+6.1 | R |
92 | 53.94% | 45.00% | D+8.9 | 42.25% | 51.61% | R+9.4 | R |
93 | 56.63% | 42.22% | D+14.4 | 50.96% | 42.21% | D+8.7 | D |
94 | 45.18% | 53.87% | R+8.7 | 43.91% | 50.10% | R+6.2 | R |
95 | 52.01% | 46.69% | D+5.3 | 41.86% | 51.59% | R+9.7 | R |
96 | 51.83% | 47.01% | D+4.8 | 35.42% | 58.91% | R+23.5 | R |
97 | 50.63% | 47.95% | D+2.7 | 37.14% | 56.46% | R+19.3 | R |
98 | 65.29% | 33.50% | D+31.8 | 48.47% | 45.38% | D+3.1 | D |
99 | 59.37% | 39.28% | D+20.1 | 52.61% | 41.12% | D+11.5 | D |
100 | 62.95% | 35.58% | D+27.4 | 51.37% | 42.25% | D+9.1 | D |
Total | 52.23% | 46.40% | D+5.8 | 42.23% | 51.72% | R+9.5 | - |
Source: Daily Kos |
See also
2024 Elections
External links
Footnotes
- ↑ Iowa Secretary of State Website, "Voter Registration FAQ," accessed July 21, 2025
- ↑ 270towin.com, "Iowa," accessed June 1, 2017
- ↑ Daily Kos, "Daily Kos Elections' statewide election results by congressional and legislative districts," July 9, 2013
- ↑ Daily Kos, "Daily Kos Elections' 2016 presidential results for congressional and legislative districts," February 6, 2017