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Illinois' 11th Congressional District
Illinois' 11th Congressional District in the United States House of Representatives is represented by Bill Foster (D).
As of the 2020 Census, Illinois representatives represented an average of 754,279 residents. After the 2010 Census, each member represented 714,688 residents.
Elections
See also: Illinois's 11th Congressional District election, 2030
There are no official candidates yet for this election.
See also: United States House of Representatives elections in Illinois, 2028
There are no official candidates yet for this election.
See also: Illinois' 11th Congressional District election, 2026
General election
The primary will occur on March 17, 2026. The general election will occur on November 3, 2026. General election candidates will be added here following the primary.
Democratic primary
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster (D) is running in the Democratic primary for U.S. House Illinois District 11 on March 17, 2026.
Candidate | ||
| | Bill Foster | |
= 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. | ||||
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Withdrawn or disqualified candidates
- Tekita Martinez (D)
Republican primary
Republican primary for U.S. House Illinois District 11
Tedora Brown (R), Charlie Kim (R), Mike Pierce (R), and Jeffrey Walter (R) are running in the Republican primary for U.S. House Illinois District 11 on March 17, 2026.
Candidate | ||
| | Tedora Brown | |
| | Charlie Kim | |
| | Mike Pierce | |
| | Jeffrey Walter ![]() | |
= 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. | ||||
See also: Illinois' 11th Congressional District election, 2024
General election
General election for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Jerry Evans (R) and Anna Schiefelbein (Independent) in the general election for U.S. House Illinois District 11 on November 5, 2024.
Candidate | % | Votes | ||
| ✔ | | Bill Foster (D) | 55.6 | 199,825 |
| | Jerry Evans (R) | 44.4 | 159,630 | |
| | Anna Schiefelbein (Independent) (Write-in) | 0.1 | 229 | |
| Total votes: 359,684 | ||||
= 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. | ||||
Democratic primary
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Qasim Rashid (D) in the Democratic primary for U.S. House Illinois District 11 on March 19, 2024.
Candidate | % | Votes | ||
| ✔ | | Bill Foster | 76.6 | 35,159 |
| | Qasim Rashid ![]() | 23.4 | 10,754 | |
| Total votes: 45,913 | ||||
= 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. | ||||
Republican primary
Republican primary for U.S. House Illinois District 11
Jerry Evans (R) defeated Susan Hathaway-Altman (R) and Kent Mercado (R) in the Republican primary for U.S. House Illinois District 11 on March 19, 2024.
Candidate | % | Votes | ||
| ✔ | | Jerry Evans | 50.7 | 17,814 |
| | Susan Hathaway-Altman | 37.1 | 13,032 | |
| | Kent Mercado ![]() | 12.3 | 4,312 | |
| Total votes: 35,158 | ||||
= 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. | ||||
Withdrawn or disqualified candidates
- Alec Martin (R)
See also: Illinois' 11th Congressional District election, 2022
General election
General election for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Catalina Lauf (R) and Donald Wagner (Independent) in the general election for U.S. House Illinois District 11 on November 8, 2022.
Candidate | % | Votes | ||
| ✔ | | Bill Foster (D) | 56.5 | 149,172 |
| | Catalina Lauf (R) ![]() | 43.5 | 115,069 | |
| Donald Wagner (Independent) (Write-in) | 0.0 | 0 | ||
| Total votes: 264,241 | ||||
= 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. | ||||
Democratic primary
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster (D) advanced from the Democratic primary for U.S. House Illinois District 11 on June 28, 2022.
Candidate | % | Votes | ||
| ✔ | | Bill Foster | 100.0 | 44,096 |
| Total votes: 44,096 | ||||
= 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. | ||||
Republican primary
Republican primary for U.S. House Illinois District 11
The following candidates ran in the Republican primary for U.S. House Illinois District 11 on June 28, 2022.
Candidate | % | Votes | ||
| ✔ | | Catalina Lauf ![]() | 31.0 | 15,360 |
| | Jerry Evans ![]() | 22.5 | 11,158 | |
| | Mark Carroll ![]() | 20.1 | 9,955 | |
| | Susan Hathaway-Altman ![]() | 12.1 | 6,017 | |
| Cassandra Tanner Miller | 7.5 | 3,730 | ||
| Andrea Heeg | 6.7 | 3,334 | ||
| Total votes: 49,554 | ||||
= 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. | ||||
Withdrawn or disqualified candidates
- Grace Green (R)
- Mike Pierce (R)
- Juan Ramos (R)
- Dean Seppelfrick (R)
See also: Illinois' 11th Congressional District election, 2020
General election
General election for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Rick Laib (R) and Jon Harlson (Independent) in the general election for U.S. House Illinois District 11 on November 3, 2020.
Candidate | % | Votes | ||
| ✔ | | Bill Foster (D) | 63.3 | 194,557 |
| | Rick Laib (R) ![]() | 36.7 | 112,807 | |
| Jon Harlson (Independent) (Write-in) | 0.0 | 13 | ||
| Total votes: 307,377 | ||||
= 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. | ||||
Democratic primary
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Rachel Ventura (D) in the Democratic primary for U.S. House Illinois District 11 on March 17, 2020.
Candidate | % | Votes | ||
| ✔ | | Bill Foster | 58.7 | 46,116 |
| | Rachel Ventura ![]() | 41.3 | 32,422 | |
| Total votes: 78,538 (100% precincts reporting) | ||||
= 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. | ||||
Republican primary
Republican primary for U.S. House Illinois District 11
Rick Laib (R) defeated Krishna Bansal (R) in the Republican primary for U.S. House Illinois District 11 on March 17, 2020.
Candidate | % | Votes | ||
| ✔ | | Rick Laib ![]() | 54.1 | 12,474 |
| | Krishna Bansal ![]() | 45.9 | 10,603 | |
| Total votes: 23,077 (100% precincts reporting) | ||||
= 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. | ||||
See also: Illinois' 11th Congressional District election, 2018
General election
General election for U.S. House Illinois District 11
Incumbent Bill Foster (D) defeated Nick Stella (R) in the general election for U.S. House Illinois District 11 on November 6, 2018.
Candidate | % | Votes | ||
| ✔ | | Bill Foster (D) | 63.8 | 145,407 |
| | Nick Stella (R) | 36.2 | 82,358 | |
| Total votes: 227,765 (100% precincts reporting) | ||||
= 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. | ||||
Democratic primary
Democratic primary for U.S. House Illinois District 11
Incumbent Bill Foster (D) advanced from the Democratic primary for U.S. House Illinois District 11 on March 20, 2018.
Candidate | % | Votes | ||
| ✔ | | Bill Foster | 100.0 | 49,762 |
| Total votes: 49,762 | ||||
= 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. | ||||
Republican primary
Republican primary for U.S. House Illinois District 11
Nick Stella (R) defeated Connor VlaKancic (R) in the Republican primary for U.S. House Illinois District 11 on March 20, 2018.
Candidate | % | Votes | ||
| ✔ | | Nick Stella | 79.3 | 23,992 |
| | Connor VlaKancic | 20.7 | 6,253 | |
| Total votes: 30,245 | ||||
= 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. | ||||
District map

Redistricting
2020-2021
Illinois enacted a congressional map on November 24, 2021, after Gov. J.B. Pritzker (D) signed the proposal into law.[16] The Illinois State Senate voted 41-18 in favor of the map on October 28, 2021, followed by the Illinois House of Representatives voting 71-43 in favor on October 29, 2021.[17]
How does redistricting in Illinois work? The Illinois General Assembly is responsible for drawing both congressional and state legislative district lines. Both chambers of the state legislature must approve a redistricting plan. The governor may veto the lines drawn by the state legislature.[18]
In the event that both chambers of the state legislature do not approve a legislative redistricting plan, a backup commission must draw the lines. The majority and minority leaders of each chamber must appoint two members each to the commission (one legislator and one general citizen). Of the eight commission members, no more than four may belong to the same political party. In the event that these eight members cannot approve a plan, the Illinois Supreme Court must select two individuals (from different political parties) as potential tiebreakers. The secretary of state must then appoint one of these individuals to the backup commission to break the tie.[18]
The Illinois Constitution requires that state legislative districts be "contiguous and reasonably compact." There are no such requirements in place for the state's congressional districts.[18]
State law also mandates the establishment of state legislative districts "that allow racial or language minority communities to elect--or influence the election of--the candidates of their choice, even if no comparable district would be required by the federal Voting Rights Act."[18]
2020

2024

2010-2011
Slow population growth required Illinois to lose one congressional seat following the 2010 census. With Democrats in charge of the House, Senate, and governorship, it was easy to pass a map beneficial to their party. According to an analysis by Politico, the new map could cost the GOP up to five U.S. House seats. GOP consultant David From said of the map, “It’s kind of a work of art, in the wrong direction. There’s a lot of creativity.”[19]
Republicans filed suit against the map, but eventually saw it upheld in the courts. A federal court panel agreed with the Republican complaint that the map was "a blatant political move to increase the number of Democratic congressional seats," but said that Republicans "failed to present a workable standard by which to evaluate such claims."[20]
The redraw 11th is strictly made up of suburban areas more friendly to Republicans.[21]
District analysis
- See also: The Cook Political Report's Partisan Voter Index
- See also: FiveThirtyEight's elasticity scores
2026
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.[22]
2024
Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+5. This meant that in those two presidential elections, this district's results were 5 percentage points more Democratic than the national average. This made Illinois' 11th the 162nd most Democratic district nationally.[23]
Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have defeated Donald Trump (R) 56.6%-41.3%.[24]
2022
Heading into the 2022 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+5. This meant that in those two presidential elections, this district's results were 5 percentage points more Democratic than the national average. This made Illinois' 11th the 162nd most Democratic district nationally.[25]
Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have received 56.6% of the vote in this district and Donald Trump (R) would have received 41.3%.[26]
2018
Heading into the 2018 elections, based on results from the 2016 and 2012 presidential elections, the Cook Partisan Voter Index for this district was D+9. This meant that in those two presidential elections, this district's results were 9 percentage points more Democratic than the national average. This made Illinois' 11th Congressional District the 125th most Democratic nationally.[27]
FiveThirtyEight's September 2018 elasticity score for states and congressional districts measured "how sensitive it is to changes in the national political environment." This district's elasticity score was 1.11. This means that for every 1 point the national political mood moved toward a party, the district was expected to move 1.11 points toward that party.[28]
See also
- Redistricting in Illinois
- Illinois' 11th Congressional District election, 2024
- Illinois' 11th Congressional District election, 2022
- Illinois' 11th Congressional District election, 2020
- Illinois' 11th Congressional District election, 2018
External links
Footnotes
- ↑ Illinois State Board of Elections, "Candidate List," accessed November 30, 2015
- ↑ The New York Times, "Illinois Primary Results," March 15, 2016
- ↑ Chicago Tribune, "Khouri, Stella separated by less than a percentage point in 11th District," March 16, 2016
- ↑ 4.0 4.1 Daily Herald "Senger meets with GOP officials about challenge to Foster" accessed April 17, 2013
- ↑ Sun Times "Aurora man exploring run for Congress in 11th District" accessed April 17, 2013
- ↑ Illinois Elections Division, "Bert Miller Candidate Detail," accessed November 27, 2013
- ↑ Illinois Elections Division, "Candidate Detail," accessed December 2, 2013
- ↑ Politico, "2012 Election Map, Illinois"
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 2, 2010," accessed March 28, 2013
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 4, 2008," accessed March 28, 2013
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 7, 2006," accessed March 28, 2013
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 7, 2006," accessed March 28, 2013
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 5, 2002"
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 7, 2000"
- ↑ U.S. Congress House Clerk, "Statistics of the Congressional Election of November 3, 1998"
- ↑ The Associated Press, "Gov. Pritzker signs new Illinois congressional map into law," Nov. 24, 2021
- ↑ Chicago Tribune, "Fourth version of a Democratic-drawn congressional map passed by legislators, heads to Pritzker," Oct. 29, 2021
- ↑ 18.0 18.1 18.2 18.3 All About Redistricting, "Illinois," accessed April 16, 2015
- ↑ Politico, "Illinois Republicans brace for bloodbath," June 2, 2011
- ↑ BusinessWeek, "Illinois Republicans Lose Challenge to New Congressional Map," December 16, 2011
- ↑ Chicago Tribune, "Biggert now unopposed in GOP race," February 2, 2012
- ↑ Cook Political Report, "2025 Cook PVI℠: District Map and List (119th Congress)," accessed July 1, 2025
- ↑ Cook Political Report, "The 2022 Cook Partisan Voting Index (Cook PVI℠)," accessed January 10, 2024
- ↑ Daily Kos, "Daily Kos Elections' 2020 presidential results by congressional district, for new and old districts," accessed September 15, 2022
- ↑ Cook Political Report, "The 2022 Cook Partisan Voting Index (Cook PVI℠)," accessed February 6, 2023
- ↑ Daily Kos, "Daily Kos Elections' 2020 presidential results by congressional district, for new and old districts," accessed September 15, 2022
- ↑ Cook Political Report, "Introducing the 2017 Cook Political Report Partisan Voter Index," April 7, 2017
- ↑ FiveThirtyEight, "Election Update: The Most (And Least) Elastic States And Districts," September 6, 2018
= candidate completed the