Iowa gubernatorial and lieutenant gubernatorial election, 2018 (June 5 Libertarian primary)
- General election: Nov. 6
- Voter registration deadline: Oct. 27
- Early voting: Oct. 8 - Nov. 5
- Absentee voting deadline: Nov. 6
- Online registration: Yes
- Same-day registration: Yes
- Voter ID: ID required
- Poll times: 7:00 a.m. to 9:00 p.m.
2022 →
← 2014
|
| Governor and Lieutenant Governor of Iowa |
|---|
 |
| Democratic primary Republican primary Libertarian primary General election |
| Election details |
| Filing deadline: March 16, 2018 |
| Primary: June 5, 2018 General: November 6, 2018 Pre-election incumbent(s): Gov. Kim Reynolds (Republican) Lt. Gov. Adam Gregg (Republican) |
| How to vote |
| Poll times: 7 a.m. to 9 p.m. Voting in Iowa |
| Race ratings |
Sabato's Crystal Ball: Toss-up Inside Elections: Tilt Democratic |
| Ballotpedia analysis |
| Federal and state primary competitiveness State executive elections in 2018 Impact of term limits in 2018 State government trifectas State government triplexes Ballotpedia's Election Analysis Hub, 2018 |
| Iowa executive elections |
| Governor Lieutenant governor |
A Libertarian Party primary election took place on June 5, 2018, in Iowa to determine which Libertarians would run in the state's November 6, 2018, general election as the gubernatorial and lieutenant gubernatorial nominees.
For more information about gubernatorial elections in 2018, click here.
| SETTING THE STAGE | |
Iowa was one of 36 states that held an election for governor in 2018. Democrats gained seven previously Republican-held seats, and Republicans gained one previously independent-held seat. Heading into the 2018 elections, there were 16 Democratic governors, 33 Republican governors, and one independent governor. In 2018, 26 of the 33 states with a Republican governor held a gubernatorial election, while nine out of the 16 states with a Democratic governor held a gubernatorial election. Seventeen of the 36 seats up for election were open seats (four Democratic, 12 Republican, and one independent), meaning that the sitting governor was not seeking re-election. Click here for more information on other 2018 gubernatorial elections.
Candidates and election results
Jake Porter defeated Marco Battaglia in the Libertarian primary for Governor of Iowa on June 5, 2018.
Libertarian primary election
Libertarian primary for Governor of Iowa
Candidate | % | Votes | ||
| ✔ |  | Jake Porter  | 58.4 | 991 |
 | Marco Battaglia | 41.6 | 705 | |
| Total votes: 1,696 | |||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Context of the 2018 election
Past elections
2014
Lee Hieb was the only Libertarian candidate running for governor of Iowa in the 2014 election.
Voter information
How the primary works
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.
Poll times
In Iowa, all polls are open from 7:00 a.m. to 8:00 p.m. Central Time. An individual who is in line at the time polls close must be allowed to vote.[2][3]
Registration requirements
- Check your voter registration status here.
To vote in Iowa, one must be a United States citizen, a resident of Iowa, and at least 18 years old by Election Day. A voter that is 17 years old may participate in a primary election if they will be 18 by the time of the next general election. The deadline to register is 15 days prior to the election but registration is permitted on Election Day with proof of identification.Iowans may register online or by completing a form and returning to their county auditor’s office by mail or in person.[4][5]
Automatic registration
- See also: Automatic voter registration
Iowa does not practice automatic voter registration.
Online registration
- See also: Online voter registration
Iowa has implemented an online voter registration system. Residents can register to vote by visiting this website.
Same-day registration
- See also: Same-day voter registration
Iowa allows same-day voter registration.
In order to register and vote on Election Day, voters must go to the correct polling place with proof of their identity and residence (i.e. a valid Iowa driver's license or another acceptable form of photo identification and proof of residency).[6] Click here to read more about voter identification requirements.
Residency requirements
To register to vote in Iowa, you must be a resident of the state. State law does not specify a length of time for which you must have been a resident to be eligible.
Verification of citizenship
Iowa does not require proof of citizenship for voter registration. An individual applying to register to vote must attest that they are a U.S. citizen under penalty of perjury.[7]
All 49 states with voter registration systems require applicants to declare that they are U.S. citizens in order to register to vote in state and federal elections, under penalty of perjury or other punishment.[8] Seven states — Alabama, Arizona, Georgia, Kansas, Louisiana, New Hampshire, and Wyoming — have laws requiring verification of citizenship at the time of voter registration, whether in effect or not. In three states — California, Maryland, and Vermont — at least one local jurisdiction allows noncitizens to vote in some local elections. Noncitizens registering to vote in those elections must complete a voter registration application provided by the local jurisdiction and are not eligible to register as state or federal voters.
Verifying your registration
The Iowa secretary of state’s office maintains a page that allows residents to check their voter registration status online.
Voter ID requirements
Iowa requires voters to present identification while voting. Voters who do not have a valid ID can obtain an Iowa voter ID card for free by mail.[9] According to the secretary of state's website, " Iowa Department of Transportation’s Driver’s License or Non-Operator ID files are automatically mailed an Iowa Voter Identification Card."[9][10]
Voters can present the following forms of identification:
- Iowa voter ID card
- Iowa driver’s license
- Iowa non-operator ID
- U.S. passport
- U.S. military ID or veteran ID
- Tribal ID card/document
Voter who do not have one of the IDs listed above may have another voter attest to their identity, or they may provide a combination of other documents to verify their identity and residence. The following additional documents are acceptable proof of identity:[5]
- Out-of-state driver's license or non-driver ID card
- ID card issued by employer
- Student ID issued by Iowa high school or college
- Another photo ID that is current, valid, and contains an expiration date
The following documents are acceptable proof of residence:[5]
- A photo ID from one of the lists above that includes the voter's current address
- Residential lease
- Utility bill (including a cell phone bill)
- Bank statement
- Paycheck
- Government check or other government document
- Property tax statement
Voters without the required identification or another voter to attest to their identity will be offered a provisional ballot.[9]
Early voting
Iowa permits early voting. Learn more by visiting this website.
Early voting permits citizens to cast ballots in person at a polling place prior to an election. In states that permit no-excuse early voting, a voter does not have to provide an excuse for being unable to vote on Election Day. States that allow voters to cast no-excuse absentee/mail-in ballots in person are counted as no-excuse early voting states.
Forty-seven states and the District of Columbia permit no-excuse early voting.
Absentee voting
All voters are eligible to vote absentee/by-mail in Iowa. There are no special eligibility requirements for voting absentee. To vote absentee/by-mail, a request application must be received by the county auditor between 70 days before the election and 5 p.m. on the 15th day prior to the election. Voters must include one of the following: Iowa driver's license or non-operator ID number, voter ID/verification number, or the four-digit PIN from their voter ID card. Returned absentee ballots must be received by the time polls close on Election Day in order to be counted.[11]
State overview
Partisan control
This section details the partisan control of federal and state positions in Iowa heading into the 2018 elections.
Congressional delegation
- Following the 2016 elections, Republicans held both U.S. Senate seats in Iowa.
- Republicans held three U.S. House seats in Iowa and a Democrat held the fourth.
State executives
- As of September 2018, Republicans held five of 12 state executive positions, Democrats held two, and the remaining positions were officially nonpartisan.
- The governor of Iowa was Republican Kim Reynolds. The state held elections for governor and lieutenant governor on November 6, 2018.
State legislature
- Republicans controlled both chambers of the Iowa General Assembly. They had a 58-41 majority in the state House and a 29-20 majority in the state Senate.
Trifecta status
- Iowa had a Republican trifecta, meaning that the Republican Party controlled both chambers of the state legislature and the governorship. Kim Reynolds (R) served as governor; she succeeded Terry E. Branstad, who resigned on May 24, 2017, to take the position of U.S. Ambassador to China.
2018 elections
- See also: Iowa elections, 2018
Iowa held elections for the following positions in 2018:
- 4 U.S. House seats
- Governor and lieutenant governor
- 5 lower state executive positions
- 25 of 50 state Senate seats
- 100 state House seats
- 2 state legislative seats in special elections
Demographics
| Demographic data for Iowa | ||
|---|---|---|
| Iowa | U.S. | |
| Total population: | 3,121,997 | 316,515,021 |
| Land area (sq mi): | 55,857 | 3,531,905 |
| Race and ethnicity** | ||
| White: | 91.2% | 73.6% |
| Black/African American: | 3.2% | 12.6% |
| Asian: | 2% | 5.1% |
| Native American: | 0.3% | 0.8% |
| Pacific Islander: | 0.1% | 0.2% |
| Two or more: | 2% | 3% |
| Hispanic/Latino: | 5.4% | 17.1% |
| Education | ||
| High school graduation rate: | 91.5% | 86.7% |
| College graduation rate: | 26.7% | 29.8% |
| Income | ||
| Median household income: | $53,183 | $53,889 |
| Persons below poverty level: | 13.8% | 11.3% |
| Source: U.S. Census Bureau, "American Community Survey" (5-year estimates 2010-2015) Click here for more information on the 2020 census and here for more on its impact on the redistricting process in Iowa. **Note: Percentages for race and ethnicity may add up to more than 100 percent because respondents may report more than one race and the Hispanic/Latino ethnicity may be selected in conjunction with any race. Read more about race and ethnicity in the census here. | ||
As of July 2016, Iowa's three largest cities were Des Moines (pop. est. 220,000), Cedar Rapids (pop. est. 130,000), and Davenport (pop. est. 100,000).[12]
State election history
This section provides an overview of federal and state elections in Iowa from 2000 to 2016. All data comes from the Iowa Secretary of State website.
Historical elections
Presidential elections, 2000-2016
This chart shows the results of the presidential election in Iowa every year from 2000 to 2016.
| Election results (President of the United States), Iowa 2000-2016 | |||||
|---|---|---|---|---|---|
| Year | First-place candidate | First-place candidate votes (%) | Second-place candidate | Second-place candidate votes (%) | Margin of victory (%) |
| 2016 |  Donald Trump |
50.7% |  Hillary Clinton |
41.3% | 9.4% |
| 2012 | Barack Obama |
51.7% | Mitt Romney |
46.0% | 5.7% |
| 2008 | Barack Obama |
53.7% | John McCain |
44.2% | 9.5% |
| 2004 | George W. Bush |
49.9% | John Kerry |
49.2% | 0.7% |
| 2000 | Al Gore |
48.5% | George W. Bush |
48.2% | 0.3% |
U.S. Senate elections, 2000-2016
This chart shows the results of U.S. Senate races in Iowa from 2000 to 2016. Every state has two Senate seats, and each seat goes up for election every six years. The terms of the seats are staggered so that roughly one-third of the seats are up every two years.
| Election results (U.S. Senator), Iowa 2000-2016 | |||||
|---|---|---|---|---|---|
| Year | First-place candidate | First-place candidate votes (%) | Second-place candidate | Second-place candidate votes (%) | Margin of victory (%) |
| 2016 | Chuck Grassley |
60.1% | Patty Judge |
35.7% | 24.4% |
| 2014 | Joni Ernst |
51.5% | Bruce Braley |
43.3% | 8.2% |
| 2010 | Chuck Grassley |
63.4% | Roxanne Conlin |
32.8% | 30.6% |
| 2008 | Tom Harkin |
61.4% | Christopher Reed |
36.5% | 24.9% |
| 2004 | Chuck Grassley |
70.2% | Arthur Small |
27.9% | 42.3% |
| 2002 | Tom Harkin |
54.2% | Greg Ganske |
43.8% | 10.4% |
Gubernatorial elections, 2000-2016
This chart shows the results of the four gubernatorial elections held between 2000 and 2016. Gubernatorial elections are held every four years in Iowa.
| Election results (Governor), Iowa 2000-2016 | |||||
|---|---|---|---|---|---|
| Year | First-place candidate | First-place candidate votes (%) | Second-place candidate | Second-place candidate votes (%) | Margin of victory (%) |
| 2014 | Terry Branstad |
58.4% | Jack Hatch |
36.9% | 21.5% |
| 2010 | Terry Branstad |
52.3% | Chet Culver |
42.8% | 9.5% |
| 2006 | Chet Culver |
53.7% | Jim Nussle |
44.1% | 9.6% |
| 2002 | Tom Vilsack |
52.7% | Doug Gross |
44.5% | 8.2% |
Congressional delegation, 2000-2016
This chart shows the number of Democrats and Republicans who were elected to represent Iowa in the U.S. House from 2000 to 2016. Elections for U.S. House seats are held every two years.
| Congressional delegation, Iowa 2000-2016 | |||||
|---|---|---|---|---|---|
| Year | Republicans | Republicans (%) | Democrats | Democrats (%) | Balance of power |
| 2016 | 3 |
75.0% | 1 |
25.0% | R+2 |
| 2014 | 3 |
75.0% | 1 |
25.0% | R+2 |
| 2012[13] | 2 |
50.0% | 2 |
50.0% | Split |
| 2010 | 2 |
40.0% | 3 |
60.0% | D+1 |
| 2008 | 2 |
40.0% | 3 |
60.0% | D+1 |
| 2006 | 2 |
40.0% | 3 |
60.0% | D+1 |
| 2004 | 4 |
80.0% | 1 |
20.0% | R+3 |
| 2002 | 4 |
80.0% | 1 |
20.0% | R+3 |
| 2000 | 4 |
80.0% | 1 |
20.0% | R+3 |
Trifectas, 1992-2017
A state government trifecta occurs when one party controls both chambers of the state legislature and the governor's office.
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 |
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 | |||||||
|---|---|---|---|---|---|---|---|
| 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.[14]
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.[15][16]
| 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 | |||||||
|---|---|---|---|---|---|---|---|
| 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 | |||||||
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Footnotes
- ↑ Iowa Secretary of State Website, "Voter Registration FAQ," accessed July 21, 2025
- ↑ Iowa Secretary of State, "Find Your Polling Place," accessed July 21, 2025
- ↑ The Iowa Legislature, "I.C.A. § 49.74," accessed July 21, 2025
- ↑ Iowa Secretary of State, "Voter Registration," accessed July 21, 2025
- ↑ 5.0 5.1 5.2 Iowa Secretary of State, "Election Day Registration," accessed July 21, 2025
- ↑ Iowa Secretary of State, "Election Day Registration," accessed July 21, 2025
- ↑ Iowa Secretary of State, "State of Iowa Official Voter Registration Form," accessed July 21, 2025
- ↑ Under federal law, the national mail voter registration application (a version of which is in use in all states with voter registration systems) requires applicants to indicate that they are U.S. citizens in order to complete an application to vote in state or federal elections, but does not require voters to provide documentary proof of citizenship. According to the U.S. Department of Justice, the application "may require only the minimum amount of information necessary to prevent duplicate voter registrations and permit State officials both to determine the eligibility of the applicant to vote and to administer the voting process."
- ↑ 9.0 9.1 9.2 Iowa Secretary of State, "Voter ID FAQ," accessed July 21, 2025
- ↑ Iowa Secretary of State, "Iowa Voter Identification Requirements," accessed July 21, 2025
- ↑ Iowa Secretary of State, "Absentee Voting," accessed July 21, 2025
- ↑ Iowa Demographics, "Iowa Cities by Population," accessed September 4, 2018
- ↑ Iowa lost one U.S. House seat following the 2010 census.
- ↑ 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
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