| Illinois's 11th congressional district | |
|---|---|
Interactive map of district boundaries since January 3, 2023 | |
| Representative | |
| Area | 928.6 mi2 (2,405 km2) |
| Distribution |
|
| Population (2024) | 766,584 |
| Median household income | $108,620[1] |
| Ethnicity |
|
| Cook PVI | D+6[2] |
The 11th congressional district of Illinois is represented by Democrat Bill Foster.
From 1865 to 1867, the district included Bureau, LaSalle, Livingston and Woodford counties.[3] From 1901 until 1947 the 11th congressional district included Kane, DuPage, McHenry and Will Counties. Following the Congressional Apportionment Act of 1947, the district covered a portion of Cook County and the far northwest side of Chicago roughly centered on Norwood Park.[4] The district was not changed by 1951's redistricting.[5] In 1961, the district was widened westward to the Des Plaines River and east into parts of Lincoln Square.[6] The district covered the northwest side of Chicago until the early 1990s when it moved closer to its current area, encompassing most of LaSalle and Grundy Counties, the southern part of Will County, the northern part of Kankakee County and a small portion of southeastern Cook County along the Indiana state line.[7] The Illinois Congressional Reapportionment Act of 2001 (10 ILCS 76) defined its boundaries following the 2000 U.S. census.
Following the 2010 U.S. census the district includes Joliet in Will County, parts of Naperville in southern DuPage County, parts of Belvidere in Boone County, and Aurora in Kane County. It includes the Argonne National Laboratory. The congressional district covers parts of Boone, Cook, Du Page, Kane, Kendall and Will counties, as of the 2011 redistricting which followed the 2010 census. All or parts of Aurora, Belvidere, Bolingbrook, Darien, Joliet, Montgomery, Naperville, Lisle, Downers Grove, New Lenox, Shorewood and Woodridge are included.[8] The representatives for these districts were elected in the 2012 primary and general elections, and the boundaries became effective on January 3, 2013.
Composition
For the 118th and successive Congresses (based on redistricting following the 2020 census), the district contains all or portions of the following counties, townships, and municipalities:[9]
Boone County (6)
- Belvidere (part, also 16th), Belvidere Township (part, also 16th), Bonus Township, Flora Township (part, also 16th), Poplar Grove (part, also 16th), Spring Township
Cook County (4)
- Lemont (part, also 1st; shared with Will County), Lemont Township (part, also 1st), Palos Park (part, also 6th), Willow Springs (part, shared with Cook County)
DeKalb County (5)
- Genoa, Genoa Township, Kingston, Kingston Township, Sycamore Township (part, also 14th)
DuPage County (13)
- Aurora (part, also 14th; shared with Kane, Kendall, and Will counties), Burr Ridge (part, also 6th; shared with Cook County), Darien (part, also 6th; shared with Will County), Downers Grove (part, also 6th), Downers Grove Township (part, also 6th), Lisle (part, also 6th), Lisle Township (part, also 6th), Naperville (part, also 14th; shared with Will County), Naperville Township, Warrenville (part, also 3rd), Willow Springs (part, shared with Cook County), Winfield Township (part, also 3rd), Woodbridge
Kane County (29)
- Aurora (part, also 14th; shared with DuPage, Kendall, and Will counties), Aurora Township (part, also 14th), Batavia, Batavia Township, Blackberry Township, Burlington, Burlington Township, Campton Hills, Campton Township, Elburn, Elgin (part, also 8th), Geneva (part, also 8th), Geneva Township (part, also 8th), Hampshire (part, also 8th), Hampshire Township, Huntley (part, also 8th; shared with McHenry County), Kaneville, Kaneville Township, Lily Lake, Maple Park (part, also 14th; shared with DeKalb County), North Aurora, Pingree Grove (part, also 8th), Plato Township, Rutland Township (part, also 8th), St. Charles (part, also 8th), St. Charles Township (part, also 8th), Sugar Grove, Virgil, Virgil Township
Lake County (6)
- Fremont Township (part, also 10th), Island Lake (part, also 9th; shared with McHenry County), Lakemoor (part, also 10th; shared with McHenry County), Volo (part, also 10th), Wauconda (part, also 9th), Wauconda Township (part, also 9th)
McHenry County (26)
- Algonquin (part, also 9th), Bull Valley, Coral Township, Crystal Lake (part, also 9th), Dorr Township, Grafton Township, Greenwood Township (part, also 10th), Hartland Township (part, also 16th; includes Hartland CDP), Holiday Hills, Huntley (part, also 9th; shared with Kane County), McCullom Lake (part, also 10th), Lake in the Hills (part, also 9th), Lakemoor (part, also 10th; shared with Lake County), Lakewood, Marengo, Marengo Township, McHenry (part, also 10th), McHenry Township (part, also 10th), Nunda Township, Oakwood Hills, Prairie Grove, Port Barrington (part, also 9th; shared with Lake County), Riley Township, Seneca Township, Union, Woodstock
Will County (5)
- Bolingbrook (part, also 14th), DuPage Township (part, also 14th), Lemont (part, also 1st; shared with Cook County), Lockport Township (part, also 1st and 14th), Romeoville (part, also 14th)
Recent election results from statewide races
| Year | Office | Results[10] |
|---|---|---|
| 2008 | President | Obama 56% - 43% |
| 2012 | President | Obama 51% - 49% |
| 2016 | President | Clinton 52% - 41% |
| Senate | Duckworth 48% - 45% | |
| Comptroller (Spec.) | Munger 51% - 42% | |
| 2018 | Governor | Pritzker 48% - 46% |
| Attorney General | Raoul 50% - 47% | |
| Secretary of State | White 65% - 32% | |
| Comptroller | Mendoza 54% - 43% | |
| Treasurer | Frerichs 51% - 45% | |
| 2020 | President | Biden 57% - 41% |
| Senate | Durbin 53% - 42% | |
| 2022 | Senate | Duckworth 56% - 42% |
| Governor | Pritzker 55% - 42% | |
| Attorney General | Raoul 54% - 43% | |
| Secretary of State | Giannoulias 54% - 44% | |
| Comptroller | Mendoza 56% - 42% | |
| Treasurer | Frerichs 53% - 45% | |
| 2024 | President | Harris 54% - 43% |
List of members representing the district
Elections
2012
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bill Foster | 148,928 | 58.6 | |
| Republican | Judy Biggert (incumbent) | 105,348 | 41.4 | |
| Independent | Chris Michel (write-in) | 19 | 0.0 | |
| Total votes | 254,295 | 100.0 | ||
| Democratic gain from Republican | ||||
2014
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 93,436 | 53.5 | |
| Republican | Darlene Senger | 81,335 | 46.5 | |
| Independent | Connor Vlakancic (write-in) | 1 | 0.0 | |
| Total votes | 174,772 | 100.0 | ||
| Democratic hold | ||||
2016
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 166,578 | 60.4 | |
| Republican | Tonia Khouri | 108,995 | 39.6 | |
| Total votes | 275,573 | 100.0 | ||
| Democratic hold | ||||
2018
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 145,407 | 63.8 | |
| Republican | Nick Stella | 82,358 | 36.2 | |
| Total votes | 227,765 | 100.0 | ||
| Democratic hold | ||||
2020
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 194,557 | 63.30 | −0.54% | |
| Republican | Rick Laib | 112,807 | 36.70 | +0.54% | |
| Write-in | 13 | 0.00 | N/A | ||
| Total votes | 307,377 | 100.0 | |||
| Democratic hold | |||||
2022
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 149,172 | 56.45 | |
| Republican | Catalina Lauf | 115,069 | 43.55 | |
| Total votes | 264,241 | 100.0 | ||
| Democratic hold | ||||
2024
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Bill Foster (incumbent) | 199,825 | 55.56 | −0.91% | |
| Republican | Jerry Evans | 159,630 | 44.38 | +0.83% | |
| Write-in | 229 | 0.08 | N/A | ||
| Total votes | 359,684 | 100.0 | |||
| Democratic hold | |||||
See also
References
- "My Congressional District".
- "2025 Cook PVI℠: District Map and List (119th Congress)". Cook Political Report. April 3, 2025. Retrieved April 5, 2025.
- eli.sls.lib.il.us
- eli.sls.lib.il.us
- eli.sls.lib.il.us
- eli.sls.lib.il.us
- eli.sls.lib.il.us
- Illinois Congressional District 11 Archived December 29, 2016, at the Wayback Machine, Illinois Board of Elections
- https://www2.census.gov/geo/maps/cong_dist/cd119/cd_based/ST17/CD119_IL11.pdf
- "Dra 2020".
- "2012 General Election Official Vote Totals" (PDF). Illinois State Board of Elections. Archived from the original (PDF) on November 19, 2013. Retrieved March 26, 2012.
- "Illinois General Election 2014". Illinois State Board of Elections. November 4, 2014. Archived from the original on December 15, 2014. Retrieved March 2, 2015.
- "2018 General Election Official Vote Totals Book".
- "Election Results 2020 GENERAL ELECTION". Illinois State Board of Elections. December 4, 2020. Retrieved December 4, 2020.
- "Illinois 2020 Election Results". Chicago Sun-Times. November 20, 2020. Retrieved November 20, 2020.
- Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
- Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
- Congressional Biographical Directory of the United States 1774–present
External links
- 2002 Census of Agriculture – 11th Congressional District Profile
- District map
- Congressional district profiles
- Washington Post page on the 11th District of Illinois
- U.S. Census Bureau – 11th District Fact Sheet Archived September 28, 2011, at the Wayback Machine
- Maps
41°38′34″N 88°08′45″W / 41.64278°N 88.14583°W / 41.64278; -88.14583



