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Illinois' 11th Congressional District election, 2026 (March 17 Democratic primary)
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| Illinois' 11th Congressional District |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: November 3, 2025 |
| Primary: March 17, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
6 a.m. to 7 p.m. |
| Race ratings |
DDHQ and The Hill: Pending Inside Elections: Solid Democratic Sabato's Crystal Ball: Safe Democratic |
| Ballotpedia analysis |
| U.S. Senate battlegrounds U.S. House battlegrounds Federal and state primary competitiveness Ballotpedia's Election Analysis Hub, 2026 |
| See also |
U.S. Senate • 1st • 2nd • 3rd • 4th • 5th • 6th • 7th • 8th • 9th • 10th • 11th • 12th • 13th • 14th • 15th • 16th • 17th Illinois elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Democratic Party primary takes place on March 17, 2026, in Illinois' 11th Congressional District to determine which Democratic candidate will run in the district's general election on November 3, 2026.
| Candidate filing deadline | Primary election | General election |
|---|---|---|
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 Illinois, state law provides for a closed primary where a voter must be affiliated with a party to vote in that party's primary. However, voters state their affiliation at the polls and any voter may change their affiliation on the day of the primary. A voter's eligibility to vote a party's ballot may be challenged.[1]
For information about which offices are nominated via primary election, see this article.
This page focuses on Illinois' 11th Congressional District Democratic primary. For more in-depth information on the district's Republican primary and the general election, see the following pages:
- Illinois' 11th Congressional District election, 2026 (March 17 Republican primary)
- Illinois' 11th Congressional District election, 2026
Candidates and election results
Democratic primary election
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster is running in the Democratic primary for U.S. House Illinois District 11 on March 17, 2026.
Candidate | ||
 | Bill Foster | |
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Withdrawn or disqualified candidates
- Tekita Martinez (D)
Candidate profiles
There are currently no candidate profiles created for this race. Candidate profiles will appear here as they are created. Encourage the candidates in this race to complete Ballotpedia's Candidate Connection survey so that their profile will appear here. You can ask candidates in this race to fill out the survey by clicking their names below:
Voting information
- See also: Voting in Illinois
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| Bill Foster | Democratic Party | $1,018,741 | $519,426 | $2,049,880 | As of September 30, 2025 |
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Source: Federal Elections Commission, "Campaign finance data," 2026. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC).
* According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee." |
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District analysis
Click the tabs below to view information about voter composition, past elections, and demographics in both the district and the state.
- District map - A map of the district in place for the election.
- Competitiveness - Information about the competitiveness of 2026 U.S. House elections in the state.
- Presidential elections - Information about presidential elections in the district and the state.
- State party control - The partisan makeup of the state's congressional delegation and state government.
Below is the district map in place for this election. Click the map below to enlarge it.
Partisan Voter Index
Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is D+6. This meant that in those two presidential elections, this district's results were 6 percentage points more Democratic than the national average. This made Illinois' 11th the 151st most Democratic district nationally.[2]
2020 presidential election results
The table below shows what the vote in the 2024 presidential election was in this district. The presidential election data was compiled by The Downballot.
Kamala Harris  |
Donald Trump  |
|---|---|
| 55.0% | 44.0% |
Presidential voting history
- See also: Presidential election in Illinois, 2024
Illinois presidential election results (1900-2024)
- 17 Democratic wins
- 15 Republican wins
| Year | 1900 | 1904 | 1908 | 1912 | 1916 | 1920 | 1924 | 1928 | 1932 | 1936 | 1940 | 1944 | 1948 | 1952 | 1956 | 1960 | 1964 | 1968 | 1972 | 1976 | 1980 | 1984 | 1988 | 1992 | 1996 | 2000 | 2004 | 2008 | 2012 | 2016 | 2020 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Winning Party | R | R | R | D | R | R | R | R | D | D | D | D | D | R | R | D | D | R | R | R | R | R | R | D | D | D | D | D | D | D | D | D |
Congressional delegation
The table below displays the partisan composition of Illinois' congressional delegation as of October 2025.
| Congressional Partisan Breakdown from Illinois | |||
|---|---|---|---|
| Party | U.S. Senate | U.S. House | Total |
| Democratic | 2 | 14 | 16 |
| Republican | 0 | 3 | 3 |
| Independent | 0 | 0 | 0 |
| Vacancies | 0 | 0 | 0 |
| Total | 2 | 17 | 19 |
State executive
The table below displays the officeholders in Illinois' top four state executive offices as of October 2025.
| Office | Officeholder |
|---|---|
| Governor | J.B. Pritzker |
| Lieutenant Governor | Juliana Stratton |
| Secretary of State | Alexi Giannoulias |
| Attorney General | Kwame Raoul |
State legislature
Illinois State Senate
| Party | As of October 2025 | |
|---|---|---|
| Democratic Party | 40 | |
| Republican Party | 19 | |
| Other | 0 | |
| Vacancies | 0 | |
| Total | 59 | |
Illinois House of Representatives
| Party | As of October 2025 | |
|---|---|---|
| Democratic Party | 78 | |
| Republican Party | 40 | |
| Other | 0 | |
| Vacancies | 0 | |
| Total | 118 | |
Trifecta control
Illinois Party Control: 1992-2025
Nineteen years of Democratic trifectas • Two 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 | R | R | R | R | D | D | D | D | D | D | D | D | D | D | D | D | R | R | R | R | D | D | D | D | D | D | D |
| Senate | D | R | R | R | R | R | R | R | R | R | R | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D |
| House | D | D | D | R | R | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D |
Ballot access
The table below details filing requirements for U.S. House candidates in Illinois in the 2026 election cycle. For additional information on candidate ballot access requirements in Illinois, click here.
| Filing requirements for U.S. House candidates, 2026 | ||||||
|---|---|---|---|---|---|---|
| State | Office | Party | Signatures required | Filing fee | Filing deadline | Source |
| Illinois | U.S. House | Established parties | Not less than .5% (.005) of the qualified primary electors of their party in the congressional district | N/A | 11/3/2025 | Source |
| Illinois | U.S. House | Independents | Not less than 5% nor more than 8% (or 50 more than the minimum, whichever is greater) of the total number of persons who voted at the last regular general election within the congressional district. | N/A | 5/26/2026 | Source |
See also
- Illinois' 11th Congressional District election, 2026 (March 17 Republican primary)
- Illinois' 11th Congressional District election, 2026
- United States House elections in Illinois, 2026 (March 17 Democratic primaries)
- United States House elections in Illinois, 2026 (March 17 Republican primaries)
- United States House Democratic Party primaries, 2026
- United States House Republican Party primaries, 2026
- United States House of Representatives elections, 2026
- U.S. House battlegrounds, 2026
External links
Footnotes
