Iowa’s 4th Congressional District is represented by Randy Feenstra (R) in the U.S. House of Representatives. The district is one of Iowa’s seats in the 435-member House of Representatives. After the 2020 Census, the average congressional district had 761,169 people, according to the U.S. Census Bureau, and these district boundaries were drawn during the redistricting cycle that followed.
Congressional representatives serve two-year terms and face election every even-numbered year. The next election for this seat will take place on November 3, 2026.
Population
795,592
Median Household Income
$70,703
Population and income: U.S. Census Bureau, American Community Survey 5-year estimates for 2019 to 2023, for district lines in effect on January 1, 2023.
Partisan Lean
R+32
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Randy Feenstra and Iowa's 4th Congressional District
Randy Feenstra, a member of the Republican Party, represents Iowa's 4th Congressional District and has held the seat since January 3, 2021. The boundary map for the district is above and the ZIP codes it covers are listed further down this page.
Committee assignments: House Committee on Agriculture and House Committee on Ways and Means.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-4426. Official site: feenstra.house.gov.
Current Representative
Rep. Randy Feenstra (R)
119th Congress • Republican • Representing this district since January 3, 2021
Randy Feenstra currently represents Iowa’s 4th Congressional District as a member of the Republican Party in the United States House of Representatives. The representative’s district office helps constituents with federal casework, such as Social Security claims and veterans’ benefits.
2026 Election
On the ballot November 3, 2026
- Chris McGowan, Republican
- Dave Dawson, Democratic
Source: Iowa Secretary of State, general election candidate list, checked September 26, 2026. Write-in candidates are not listed.
Key dates for November 3, 2026
| Register by mail | Monday, October 19 Application must be postmarked by this date. |
|---|---|
| Register online | Monday, October 19 |
| Register in person | Through Election Day, November 3 |
| Same-day registration | After October 19, register when you vote early at the county auditor or at your polling place, with proof of identity and residence. |
| Early in-person voting | October 14 to November 2 In-person absentee voting at county auditor offices ends at 5 p.m. on November 2. |
| Request a mail ballot | Monday, October 19 Request must be received by 5 p.m. on October 19. |
| Return a mail ballot | Must be received by 8 p.m. on November 3. |
| Election Day | Tuesday, November 3, 2026 |
Check your registration with the Iowa voter lookup. Dates come from the Iowa election office and were checked September 26, 2026. States can change deadlines, so confirm with your election office before you act.
Polling places in Iowa are open 7 a.m. to 8 p.m., local time. Confirm your registration and polling place on the official federal voter page for Iowa: vote.gov.
What is on the ballot nationally on November 3, 2026
Contact Your Representative
Washington Office
2434 Rayburn House Office Building
Washington, DC 20515
Phone: (202) 225-4426
Online
Committee Assignments
About This District
The district spans 36 counties in Iowa, including Plymouth, Pottawattamie, Boone, Emmet, and Dickinson, and others. Its largest cities are Sioux City (about 86,000), Ames (about 66,000), Council Bluffs (about 63,000), and Marshalltown (about 28,000).
Learn more about congressional districts
- What is a congressional district?
- What does a U.S. Representative do?
- What is gerrymandering?
- How congressional redistricting works
Frequently Asked Questions
Who represents Iowa's 4th Congressional District?
Randy Feenstra (R) represents Iowa's 4th Congressional District in the U.S. House of Representatives.
What political party is Randy Feenstra a member of?
Randy Feenstra is a member of the Republican Party.
How can I contact Randy Feenstra?
You can reach Randy Feenstra by phone at 202-225-4426 or through their official website at https://feenstra.house.gov.
When does Randy Feenstra's current term end?
Randy Feenstra's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is Iowa's 4th Congressional District?
Iowa's 4th Congressional District is located in the state of Iowa and is one of the 435 voting congressional districts in the U.S. House of Representatives.
What district does Randy Feenstra represent?
Randy Feenstra has represented Iowa's 4th Congressional District since January 3, 2021. The boundary map for the district is on this page.
Where can I see a map of Randy Feenstra's district?
The boundary map for Iowa's 4th Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Randy Feenstra on?
Randy Feenstra sits on House Committee on Agriculture and House Committee on Ways and Means. Committee assignments come from the Clerk of the House MemberData file.
Is Randy Feenstra still in Congress?
This site shows Randy Feenstra holding Iowa's 4th Congressional District, checked against the Clerk of the House member list. All 435 House seats are on the ballot on November 3, 2026, so the answer can change with that election.
Nearby Districts in Iowa
ZIP Codes in Iowa's 4th Congressional District
This congressional district contains 392 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
64 of these ZIP codes also extend into another Iowa district, so a ZIP code here does not always identify a single representative. Examples include 50002 (also in the 3rd), 50006 (also in the 2nd), 50020 (also in the 3rd), 50022 (also in the 3rd), 50025 (also in the 3rd), 50028 (also in the 1st), 50039 (also in the 3rd), 50042 (also in the 3rd).
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View all 392 ZIP codes in this district
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ZIP-to-district boundaries sourced from the U.S. Census Bureau's 2024-07-30 Block Equivalency File for the 119th Congress. ZCTAs (ZIP Code Tabulation Areas) approximate USPS delivery ZIPs.
U.S. Senators for this state: Chuck Grassley (R), Joni Ernst (R)
Local surveillance camera contracts
Automated license plate reader contracts are approved locally, by city councils and county boards, not by Congress. These places in this district have a contract record documented from public sources:
Records compiled by Who Approved This, an independent public-records project. Approval dates, amounts, and end dates are cited to council agendas, minutes, and signed contracts.
Place list rebuilt from the Who Approved This public export on September 26, 2026.
Last updated September 27, 2026.
Data last checked September 26, 2026.
See how this district compares with another using Compare Districts.