Illinois’s 16th Congressional District is represented by Darin LaHood (R) in the U.S. House of Representatives. The district is one of Illinois’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
750,034
Median Household Income
$82,941
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+23
2024 presidential margin (Trump vs Harris). Source: The Downballot.
District boundary, 119th Congress. Boundary data: U.S. Census Bureau TIGERweb. Map tiles: OpenStreetMap.
Darin LaHood and Illinois's 16th Congressional District
Darin LaHood, a member of the Republican Party, represents Illinois's 16th Congressional District and has held the seat since January 3, 2023. 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 Ways and Means, House Permanent Select Committee on Intelligence and House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party.
The current term ends January 3, 2027. The seat is on the ballot on Tuesday, November 3, 2026. Washington office phone: 202-225-6201. Official site: lahood.house.gov.
Current Representative
Rep. Darin LaHood (R)
119th Congress • Republican • Representing this district since January 3, 2023 • In the House since September 17, 2015
Darin LaHood currently represents Illinois’s 16th 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
- Paul Nolley, Democratic
- Darin LaHood, Republican Incumbent
Source: Illinois State Board of Elections, general election candidate list, checked September 26, 2026. Write-in candidates are not listed.
Key dates for November 3, 2026
| Register by mail | Tuesday, October 6 PassedApplication must be postmarked by this date. |
|---|---|
| Register online | Sunday, October 18 |
| Register in person | Through Election Day, November 3 |
| Same-day registration | Grace-period registration and voting run through Election Day at early voting sites and polling places. |
| Early in-person voting | September 24 to November 2 Open nowSites and hours vary by election authority. |
| Request a mail ballot | Thursday, October 29 Mailed requests must be received by October 29. In-person requests are accepted until November 2. |
| Return a mail ballot | Postmarked by November 3 and received by November 17. Ballots delivered by hand or to a drop box are due by 7 p.m. on November 3. |
| Election Day | Tuesday, November 3, 2026 |
Check your registration with the Illinois voter lookup. Dates come from the Illinois election office and were checked September 26, 2026. States can change deadlines, so confirm with your election office before you act.
Polling places in Illinois are open 6 a.m. to 7 p.m., local time. Confirm your registration and polling place on the official federal voter page for Illinois: vote.gov.
What is on the ballot nationally on November 3, 2026
Contact Your Representative
Washington Office
503 Cannon House Office Building
Washington, DC 20515
Phone: (202) 225-6201
Online
Committee Assignments
- House Committee on Ways and Means
- House Permanent Select Committee on Intelligence
- House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party
About This District
The district spans 21 counties in Illinois, including Woodford, Marshall, Lee, Stark, and Grundy, and others. Its largest cities are Pekin (about 32,000), Belvidere (about 25,000), Loves Park (about 23,000), and Machesney Park (about 23,000).
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 Illinois's 16th Congressional District?
Darin LaHood (R) represents Illinois's 16th Congressional District in the U.S. House of Representatives.
What political party is Darin LaHood a member of?
Darin LaHood is a member of the Republican Party.
How can I contact Darin LaHood?
You can reach Darin LaHood by phone at 202-225-6201 or through their official website at https://lahood.house.gov.
When does Darin LaHood's current term end?
Darin LaHood's current term in the U.S. House of Representatives ends on January 3, 2027.
Where is Illinois's 16th Congressional District?
Illinois's 16th Congressional District is located in the state of Illinois and is one of the 435 voting congressional districts in the U.S. House of Representatives.
What district does Darin LaHood represent?
Darin LaHood has represented Illinois's 16th Congressional District since January 3, 2023. The boundary map for the district is on this page.
Where can I see a map of Darin LaHood's district?
The boundary map for Illinois's 16th Congressional District is on this page. It is drawn from U.S. Census Bureau TIGERweb boundary files for the 119th Congress.
What committees is Darin LaHood on?
Darin LaHood sits on House Committee on Ways and Means, House Permanent Select Committee on Intelligence and House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party. Committee assignments come from the Clerk of the House MemberData file.
Is Darin LaHood still in Congress?
This site shows Darin LaHood holding Illinois's 16th 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 Illinois
ZIP Codes in Illinois's 16th Congressional District
This congressional district contains 290 ZIP codes. The most common 10 are shown below; expand the full list to see every ZIP in the district.
191 of these ZIP codes also extend into another Illinois district, so a ZIP code here does not always identify a single representative. Examples include 60033 (also in the 11th), 60034 (also in the 10th and 11th), 60098 (also in the 10th and 11th), 60111 (also in the 11th and 14th), 60115 (also in the 14th), 60129 (also in the 14th), 60135 (also in the 11th and 14th), 60145 (also in the 11th and 14th).
- 60033
- 60034
- 60098
- 60111
- 60113
- 60115
- 60129
- 60135
- 60145
- 60146
View all 290 ZIP codes in this district
- 60033
- 60034
- 60098
- 60111
- 60113
- 60115
- 60129
- 60135
- 60145
- 60146
- 60150
- 60152
- 60178
- 60407
- 60410
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- 60437
- 60444
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- 60450
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- 60474
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- 60541
- 60549
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- 60917
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- 61001
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- 61233
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- 61434
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- 61774
- 61776
- 61842
- 61843
- 61845
- 61854
- 62635
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: Richard J. Durbin (D), Tammy Duckworth (D)
Last updated September 27, 2026.
Data last checked September 26, 2026.
See how this district compares with another using Compare Districts.