The 11th congressional district of Illinois is represented by Democrat Bill Foster. From 1865 to 1867, the district included

Bureau Bureau ( ) may refer to: Agencies and organizations *Government agency *Public administration * News bureau, an office for gathering or distributing news, generally for a given geographical location * Bureau (European Parliament), the administra ...

, LaSalle, Livingston and Woodford counties. From 1901 until 1947 the 11th congressional district included Kane, DuPage, McHenry and

Will Will may refer to: Common meanings * Will and testament, instructions for the disposition of one's property after death * Will (philosophy), or willpower * Will (sociology) * Will, volition (psychology) * Will, a modal verb - see Shall and will ...

Counties. Following the Congressional Apportionment Act of 1947, the district covered a portion of

Cook County Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois live within Cook County. ...

and the far northwest side of Chicago roughly centered on Norwood Park. The district was not changed by 1951's redistricting. In 1961, the district was widened westward to the

Des Plaines River The Des Plaines River ( ) is a river that flows southward for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed May 13, 2011 through southern Wisconsin and northern Illinois''American H ...

and east into parts of Lincoln Square. 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. 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, and Aurora in Kane County. It includes the

Argonne National Laboratory Argonne National Laboratory is a Federally funded research and development centers, federally funded research and development center in Lemont, Illinois, Lemont, Illinois, United States. Founded in 1946, the laboratory is owned by the United Sta ...

. The

congressional district Congressional districts, also known as electoral districts in other nations, are divisions of a larger administrative region that represent the population of a region in the larger congressional body. Countries with congressional districts includ ...

covers parts of

Cook Cook or The Cook may refer to: Food preparation * Cooking, the preparation of food * Cook (domestic worker), a household staff member who prepares food * Cook (profession), an individual who prepares food for consumption in the food industry * C ...

, Du Page, Kane, Kendall and

counties, as of the 2011 redistricting which followed the 2010 census. All or parts of

Aurora An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arc ...

, Bolingbrook, Darien, Joliet, Montgomery, Naperville, Lisle, Downers Grove, New Lenox, Shorewood and Woodridge are included.Illinois Congressional District 11
, Illinois Board of Elections The representatives for these districts were elected in the 2012 primary and general elections, and the boundaries became effective on January 3, 2013.

Composition

Cities and CDPs with 10,000 or more people

– 180,542 * Naperville – 149,540 *

Elgin Elgin may refer to: Places Canada * Elgin County, Ontario * Elgin Settlement, a 19th-century community for freed slaves located in present-day North Buxton and South Buxton, Ontario * Elgin, a village in Rideau Lakes, Ontario * Elgin, Manit ...

– 114,797 * Bolingbrook – 73,922 * Downers Grove – 50,247 * Crystal Lake – 40,269 *

Romeoville Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Gateway Wetlands, directly west of the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the s ...

– 39,863 * Woodridge – 34,158 * St. Charles – 33,081 * Algonquin – 29,700 * Lake in the Hills – 28,982 * Huntley – 28,008 * McHenry – 27,135 * Batavia – 26,098 *

Woodstock The Woodstock Music and Art Fair, commonly referred to as Woodstock, was a music festival held from August 15 to 18, 1969, on Max Yasgur's dairy farm in Bethel, New York, southwest of the town of Woodstock, New York, Woodstock. Billed as "a ...

– 25,630 * Belvidere – 25,339 * Lisle – 24,223 * Darien – 22,011 *

Geneva Geneva ( , ; ) ; ; . is the List of cities in Switzerland, second-most populous city in Switzerland and the most populous in French-speaking Romandy. Situated in the southwest of the country, where the Rhône exits Lake Geneva, it is the ca ...

– 21,393 * North Aurora – 18,261 * Lemont – 17,629 * Wauconda – 14,084 * Warrenville – 13,553 * Burr Ridge – 11,192 * Campton Hills – 10,885 * Pingree Grove – 10,365

2,500 to 10,000 people

* Sugar Grove – 9,278 *

Hampshire Hampshire (, ; abbreviated to Hants.) is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Berkshire to the north, Surrey and West Sussex to the east, the Isle of Wight across the Solent to the south, ...

– 7,667 * Marengo – 7,568 * Lakemoor – 6,182 * Elburn – 6,175 * Volo – 6,122 * Willow Springs – 5,857 *

Genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...

– 5,298 * Island Lake – 5,201 * Poplar Grove – 5,049 * Palos Park – 4,899 * Lakewood – 4,283 As of the 2020 redistricting, this district will shift to cover the

Northern Illinois Northern Illinois is a region generally covering the northern third of the U.S. state of Illinois. The region is by far the most populous of Illinois, with nearly 9.7 million residents as of 2010. Economics Northern Illinois is dominated by ...

region, encompassing most of McHenry and Kane Counties, parts of Boone,

Lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

, DeKalb, DuPage,

, and

Counties. Lake County is split between this district, the 9th district, and the 10th district. They are partitioned by Volo Bog State Natural Area, W Brandenburg Rd, N US Highway 12, W Townline Rd, N Wilson Rd, W Chardon Rd, N Fairfield Rd, W Ivanhoe Rd, Liberty St, High St, Kimball Ave, E Liberty St, S Church St, Bangs St, W Liberty St, Westridge Dr/N Lakeview Cir, Carriage Hill Ct/Wood Creek Dr, Greenleaf Ave, Ridge Rd/Burr Oak Ln, and E Burnett Rd/Northern Ter. The 11th district takes in the villages of Wauconda and Island Lake (shared with McHenry County); and part of Lakemoor (shared with McHenry County) and Volo. McHenry County is split between this district, the 10th district, the 16th district, and the 9th district. The 11th and 10th districts are partitioned by Lily Lake Drain, W Rand Rd, Fox River, N Riverside Dr, Illinois Highway 31, Petersen Farm, Dutch Creek, McCullom Lake Rd, White Oak Ln, McCullom Lake, W Shore Dr, W Martin Rd, Bennington Ln, N Martin Rd, N Curran Rd, Old Draper Rd, Farmstead Dr, S Ridge Rd, N Valley Hill Rd, Barber Creek, Wonder Lake, Illinois Highway 120, Thompson Rd, and Slough Creek. The 11th and 16th districts are partitioned by Nelson Rd, Slough Creek, Hartland Rd, and Tomlin Rd. The 11th and 9th districts are partitioned by E Crystal Lake Ave, Meridian Ln, Crystal Lake Country Club, Woodscreek Park, Boulder Ridge Country Club, and Fairway View Dr. The 11th district takes in the communities of

, Marengo,

Riley Riley may refer to: Businesses * Riley (brand), British sporting goods brand founded in 1878 * Riley Motor, British motorcar and bicycle manufacturera 1890–1969 * Riley Technologies, American auto racing constructor and team, founded by Bob ...

, Franklinville, Union,

Coral Corals are colonial marine invertebrates within the subphylum Anthozoa of the phylum Cnidaria. They typically form compact Colony (biology), colonies of many identical individual polyp (zoology), polyps. Coral species include the important Coral ...

Harmony In music, harmony is the concept of combining different sounds in order to create new, distinct musical ideas. Theories of harmony seek to describe or explain the effects created by distinct pitches or tones coinciding with one another; harm ...

, Lakewood, Bull Valley, Ridgefield, Prairie Grove, Oakwood Hills, Burtons Bridge, and Holiday Hills; most of McHenry; half of Crystal Lake and Huntley (shared with Kane County); and part of Port Barrington, Lake in the Hills, Algonquin, Hartland, McCullom Lake, Island Lake (shared with Lake County), and Lakemoor (shared with Lake County) Boone County is split between this district and the 16th district. They are partitioned by Orth Rd, Poplar Grove Rd, Woodstock Rd, McKinley Ave, Squaw Prairie Rd, Beloit Rd, Illinois Business Route 20, Kishwaukee River, Wynwood Dr, N Appleton Rd, S Appleton Rd, Illinois Highway 5, and Stone Quarry Rd. The 11th district takes in the communities of Garden Prairie; half of the municipality of Belvidere; and part of Poplar Grove. DeKalb County is split between this district, the 14th district, and the 16th district. They are partitioned by Myelle Rd, Bass Line Rd, Illinois Highway 23, Whipple Rd, Plank Rd, Swanson Rd, and Darnell Rd. The 11th district takes in the municipalities of

and

Kingston Kingston may refer to: Places * List of places called Kingston, including the six most populated: ** Kingston, Jamaica ** Kingston upon Hull, England ** City of Kingston, Victoria, Australia ** Kingston, Ontario, Canada ** Kingston upon Thames, ...

. Kane County is split between this district and the 8th district. The 11th and 8th districts are partitioned by Illinois Highway 47, Regency Parkway, Farm Hill Dr, Del Webb Blvd, Jane Adams Memorial Tollway, Sandwald Rd, Ridgecrest Dr, Brier Hill Rd/Illinois Highway 47, Coombs Rd, Shadow Hill Dr, Campton Hills Dr, West Main St, South Tyler Rd, Division St, Fox River, North Washington Ave, Douglas Rd, Orion Rd, and East Fabyan Parkway. The 11th and 14th districts are partitioned by Lasher Rd, Illinois Highway 83, Jericho Rd, Arnold Ave, Rathbone Ave, Fox River, and New York St. The 11th district takes in the municipalities of North Aurora, Batavia, Kaneville, Elburn,

Virgil Publius Vergilius Maro (; 15 October 70 BC21 September 19 BC), usually called Virgil or Vergil ( ) in English, was an ancient Rome, ancient Roman poet of the Augustan literature (ancient Rome), Augustan period. He composed three of the most fa ...

, Lily Lake, Campton Hills, and Burlington; most of

; most of

west of the Fox River; southern Pingree Grove; half of St. Charles,

, and Huntley (shared with McHenry County); and part of Sugar Grove, Maple Park, and

. DuPage County is split between this district, the 6th district, and the 3rd district. The 11th, 3rd, and 6th districts are partitioned by Grand Ave, Highway 83, Central Ave, Fullerton Ave, Harvard Ave, Armitage Ave, Addison Rd, Highway 64, Westmore Ave, Plymouth St, Westwood Ave, Highway 355, Union Pacific Railroad, North Path, President St, Naperville Rd, Highway 23, Danada Ct, Arrowhead Golf Club, Herrick Rd, Galosh Ave, Butterfield Rd, Calumet Ave E, and Prairie Ave. The 11th district takes in the village of Woodridge; most of Naperville; half of Lemont (shared with Cook and Will counties); and part of Burr Ridge (shared with Cook County), Darien, Downers Grove, Lisle, and Warrenville. Cook County is split between this district and the 1st district. The 11th and 1st districts are partitioned by W Roberta Dr, Walter St, W 127th St, Glenys Dr/Norwalk Rd, Glenys Dr/Keepataw Dr, Hillview Dr, Woodglen Ln/Berkeley Ln, Country Ln/Auburn Rd, 6th St/Kromray Rd, 119th St, Mt Vernon Memorial Estates, and McCarthy Rd. The 11th district takes in the village of Willow Springs; half of Lemont (shared with DuPage and Will counties); and part of Burr Ridge (shared with DuPage County) and Palos Park. Will County is split between this district and the 14th district. They are partitioned by Modaff Rd, Knoch Knolls Park, S Knight Rd, Kings Rd, Remington Blvd, The Links at Carillon, N Weber Rd, W Normantown Rd, Romeoville Prairie Nature Preserve, and the Chicago Sanitary and Ship Canal. The 11th district takes in most of the village of Bolingbrook and half of Lemont (shared with Cook and DuPage counties) and

Recent election results from statewide races

Elections

2012

2014

2016

2018

2020

2022

2024

List of members representing the district

References

* *
Congressional Biographical Directory of the United States 1774–present

External links

2002 Census of Agriculture – 11th Congressional District ProfileDistrict mapCongressional district profiles''Washington Post'' page on the 11th District of IllinoisU.S. Census Bureau – 11th District Fact Sheet
*Maps
Illinois Districts in 1903. (1901 to 1947)

Illinois Districts following the Congressional Apportionment Act of 1947.

Illinois Districts following the Congressional Apportionment Act of 1951.

Illinois Districts following the Congressional Apportionment Act of 1961.
{{coord, 41, 38, 34, N, 88, 08, 45, W, region:US_type:city_source:kolossus-eswiki, display=title 11 Will County, Illinois Kankakee County, Illinois Grundy County, Illinois LaSalle County, Illinois Bureau County, Illinois Woodford County, Illinois McLean County, Illinois Constituencies established in 1863 1863 establishments in Illinois