Illinois's 6th congressional district

Illinois's 6th congressional district covers parts of Cook and DuPage counties. It has been represented by Democrat Sean Casten since 2019.

Representative

Sean Casten
D–Downers Grove

Area230.0 mi² (596 km²)

Distribution

99.4% urban
0.6% rural

Population (2024)

764,465

Quick facts Representative, Area ...

Illinois's 6th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Sean Casten D–Downers Grove
Area	230.0 mi² (596 km²)
Distribution	99.4% urban 0.6% rural
Population (2024)	764,465
Median household income	$96,658^[1]
Ethnicity	72.1% White 13.6% Hispanic 5.8% Asian 5.3% Black 2.7% Two or more races 0.4% other
Cook PVI	D+3^[2]

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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:^[3]

Cook County (38)

Alsip (part, also 1st), Bedford Park, Bridgeview, Bremen Township (part, also 1st), Burbank (part, also 4th), Burr Ridge (part, also 11th; shared with DuPage County), Chicago (part, also 1st, 2nd, 3rd, 4th, 5th, 7th, 8th, and 9th; shared with DuPage County), Chicago Ridge, Countryside, Crestwood (part, also 1st), Evergreen Park (part, also 1st), Hickory Hills, Hinsdale (part, also 4th; shared with DuPage County), Hodgkins, Hometown, Indian Head Park, Justice, La Grange (part, also 4th), Lyons Township (part, also 4th), Merrionette Park, Midlothian (part, also 1st), Oak Forest (part, also 1st), Oak Lawn (part, also 4th), Orland Hills, Orland Park (part, also 1st), Orland Township (part, also 1st), Palos Heights, Palos Hills, Palos Park, Palos Township, Robbins (part, also 1st), Stickney Township (part, also 4th), Summit (part, also 4th), Tinley Park (part, also 1st), Western Springs, Willow Springs (part, also 11th), Worth, Worth Township (part, also 1st)

DuPage County (21)

Addison (part, also 3rd), Addison Township (part, also 3rd), Burr Ridge (part, also 11th; shared with Cook County), Clarendon Hills (part, also 4th), Darien (part, also 11th), Downers Grove, Downers Grove Township (part, also 11th), Elmhurst (part, also 4th), Glen Ellyn (part, also 3rd), Lisle (part, also 11th), Lisle Township (part, also 11th), Lombard (part, also 3rd), Milton Township (part, also 3rd), Oak Brook (part, also 4th), Oakbrook Terrace, Villa Park, Willowbrook, Westmont, Wheaton (part, also 3rd), Woodbridge (part, also 11th), York Township (part, also 4th)

Chicago neighborhoods in the 6th district include:

Beverly (part)
Clearing (part)
Garfield Ridge (part)
Mount Greenwood (part)

Recent election results from statewide races

More information Year, Office ...

Year	Office	Results^[4]
2008	President	Obama 54% - 45%
2012	President	Obama 51% - 49%
2016	President	Clinton 51% - 42%
	Senate	Duckworth 50% - 44%
	Comptroller (Spec.)	Munger 51% - 42%
2018	Governor	Pritzker 50% - 45%
	Attorney General	Raoul 50% - 47%
	Secretary of State	White 68% - 30%
	Comptroller	Mendoza 57% - 40%
	Treasurer	Frerichs 53% - 44%
2020	President	Biden 55% - 44%
2020	Senate	Durbin 53% - 41%
2022	Senate	Duckworth 55% - 43%
	Governor	Pritzker 53% - 44%
	Attorney General	Raoul 53% - 45%
	Secretary of State	Giannoulias 54% - 44%
	Comptroller	Mendoza 56% - 42%
	Treasurer	Frerichs 52% - 46%
2024	President	Harris 51% - 45%

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History

2011 redistricting

After the 2011 redistricting which followed the 2010 census, the district included portions of Cook, DuPage, Kane, Lake and McHenry counties. All or parts of Algonquin, Barrington, Barrington Hills, Bartlett, Burr Ridge, Carol Stream, Carpentersville, Cary, Clarendon Hills, Crystal Lake, Darien, Deer Park, Downers Grove, Elgin, East Dundee, Forest Lake, Fox River Grove, Gilberts, Illinois, Glen Ellyn, Hawthorn Woods, Hinsdale, Hoffman Estates, Inverness, Kildeer, Lake Barrington, Lake in the Hills, Lake Zurich, Lakewood, Lisle, Lombard, Long Grove, Naperville, North Barrington, Oak Brook, Oakbrook Terrace, Oakwood Hills, Palatine, Port Barrington, Rolling Meadows, Sleepy Hollow, South Barrington, South Elgin, St. Charles, Tower Lakes, Trout Valley, Warrenville, Wayne, West Chicago, West Dundee, Westmont, Wheaton, Willowbrook and Winfield are included.

Prominent representatives

More information Representative, Notes ...

Representative	Notes
Thompson Campbell	Elected the 9th Illinois Secretary of State (1843–1846)
Thomas L. Harris	Served as a major for the U.S. Army during the Mexican–American War (1846–1847)
Edward Dickinson Baker	Served as a colonel for the U.S. Army during the Mexican–American War (1846–1847) Elected United States Senator from Oregon (1860–1861) Served as a colonel for the Union Army during the American Civil War (1861)
John Alexander McClernand	Served as a brigadier general and major general of the Union Army during the American Civil War (1861–1864)
Richard Yates	Elected the 13th Illinois Governor (1861–1865) Elected United States Senator from Illinois (1865–1871)
Robert R. Hitt	Appointed the 13th United States Assistant Secretary of State (1881) Served as a regent of the Smithsonian Institution (1893–1906)
William Lorimer	Elected United States Senator from Illinois (1909–1912)
Henry Hyde	Primary author of the Hyde Amendment
Peter Roskam	Served as U.S. House Majority Chief Deputy Whip (2011–2014)

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List of members representing the district

More information Member, Party ...

Member	Party	Years	Cong ress	Electoral history	District location
District created March 4, 1843
Joseph P. Hoge (Galena)	Democratic	March 4, 1843 – March 3, 1847	28th 29th	Elected in 1842. Re-elected in 1844. Retired.
Thomas J. Turner (Freeport)	Democratic	March 4, 1847 – March 3, 1849	30th	Elected in 1846. [data missing]
Edward D. Baker (Galena)	Whig	March 4, 1849 – March 3, 1851	31st	Elected in 1848. [data missing]
Thompson Campbell (Galena)	Democratic	March 4, 1851 – March 3, 1853	32nd	Elected in 1850. [data missing]
Richard Yates (Jacksonville)	Whig	March 4, 1853 – March 3, 1855	33rd	Redistricted from the 7th district and re-elected in 1852. [data missing]
Thomas L. Harris (Petersburg)	Democratic	March 4, 1855 – November 24, 1858	34th 35th	Re-elected in 1854. Re-elected in 1856. Re-elected in 1858 Died.
Vacant		November 24, 1858 – January 4, 1859	35th
Charles D. Hodges (Carrollton)	Democratic	January 4, 1859 – March 3, 1859	35th	Elected to finish Harris's term in the 35th Congress. Retired.
Vacant		March 4, 1859 – November 8, 1859	36th
John A. McClernand (Springfield)	Democratic	November 8, 1859 – October 28, 1861	36th 37th	Elected to finish Harris's term in the 36th Congress. Re-elected in 1860. Resigned to accept commission as brigadier general of volunteers for service in the Civil War.
Vacant		October 28, 1861 – December 12, 1861	37th
Anthony L. Knapp (Jerseyville)	Democratic	December 12, 1861 – March 3, 1863	37th	Elected to finish McClernand's term. Redistricted to the 10th district.
Jesse O. Norton (Joliet)	Republican	March 4, 1863 – March 3, 1865	38th	Elected in 1862. [data missing]
Burton C. Cook (Ottawa)	Republican	March 4, 1865 – August 26, 1871	39th 40th 41st 42nd	Re-elected in 1864. Re-elected in 1866. Re-elected in 1868. Re-elected in 1870. Resigned.
Vacant		August 26, 1871 – December 4, 1871	42nd
Henry Snapp (Joliet)	Republican	December 4, 1871 – March 3, 1873	42nd	Elected to finish Cook's term. [data missing]
John B. Hawley (Rock Island)	Republican	March 4, 1873 – March 3, 1875	43rd	Redistricted from the 4th district and re-elected in 1872. [data missing]
Thomas J. Henderson (Princeton)	Republican	March 4, 1875 – March 3, 1883	44th 45th 46th 47th	Elected in 1874. Re-elected in 1876. Re-elected in 1878. Re-elected in 1880. Redistricted to the 7th district.
Robert R. Hitt (Mount Morris)	Republican	March 4, 1883 – March 3, 1895	48th 49th 50th 51st 52nd 53rd	Redistricted from the 5th district and re-elected in 1882. Re-elected in 1884. Re-elected in 1886. Re-elected in 1888. Re-elected in 1890. Re-elected in 1892. Redistricted to the 9th district.
Edward D. Cooke (Chicago)	Republican	March 4, 1895 – June 24, 1897	54th 55th	Elected in 1894. Re-elected in 1896. Died.
Vacant		June 24, 1897 – November 23, 1897	55th
Henry S. Boutell (Chicago)	Republican	November 23, 1897 – March 3, 1903	55th 56th 57th	Elected to finish Cooke's term. Re-elected in 1898. Re-elected in 1900. Redistricted to the 9th district.
William Lorimer (Chicago)	Republican	March 4, 1903 – June 17, 1909	58th 59th 60th 61st	Elected in 1902. Re-elected in 1904. Re-elected in 1906. Re-elected in 1908. Resigned when elected to US Senate.
Vacant		June 17, 1909 – November 23, 1909	61st
William Moxley (Chicago)	Republican	November 23, 1909 – March 3, 1911	61st	Elected to finish Lorimer's term. [data missing]
Edmund J. Stack (Chicago)	Democratic	March 4, 1911 – March 3, 1913	62nd	Elected in 1910. [data missing]
James McAndrews (Chicago)	Democratic	March 4, 1913 – March 3, 1921	63rd 64th 65th 66th	Elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. [data missing]
John J. Gorman (Chicago)	Republican	March 4, 1921 – March 3, 1923	67th	Elected in 1920. [data missing]
James R. Buckley (Chicago)	Democratic	March 4, 1923 – March 3, 1925	68th	Elected in 1922. [data missing]
John J. Gorman (Chicago)	Republican	March 4, 1925 – March 3, 1927	69th	Elected in 1924. [data missing]
James T. Igoe (Chicago)	Democratic	March 4, 1927 – March 3, 1933	70th 71st 72nd	Elected in 1926. Re-elected in 1928. Re-elected in 1930. [data missing]
Thomas J. O'Brien (Chicago)	Democratic	March 4, 1933 – January 3, 1939	73rd 74th 75th	Elected in 1932. Re-elected in 1934. Re-elected in 1936. [data missing]
A. F. Maciejewski (Cicero)	Democratic	January 3, 1939 – December 8, 1942	76th 77th	Elected in 1938. Re-elected in 1940. Resigned.
Vacant		December 8, 1942 – January 3, 1943	77th
Thomas J. O'Brien (Chicago)	Democratic	January 3, 1943 – April 14, 1964	78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th	Elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Died.
Vacant		April 14, 1964 – January 3, 1965	88th
Daniel J. Ronan (Chicago)	Democratic	January 3, 1965 – August 13, 1969	89th 90th 91st	Elected in 1964. Re-elected in 1966. Re-elected in 1968. Died.
Vacant		August 13, 1969 – November 3, 1970	91st
George W. Collins (Chicago)	Democratic	November 3, 1970 – December 8, 1972	91st 92nd	Elected to finish Ronan's term. Re-elected in 1970. Died.
Vacant		December 8, 1972 – January 3, 1973	92nd
Harold R. Collier (Riverside)	Republican	January 3, 1973 – January 3, 1975	93rd	Redistricted from the 10th district and re-elected in 1972. Retired.
Henry Hyde (Wood Dale)	Republican	January 3, 1975 – January 3, 2007	94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th	Elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Retired.
					1983–1993 [data missing]
					1993–2003 [data missing]
					2003–2013
Peter Roskam (Wheaton)	Republican	January 3, 2007 – January 3, 2019	110th 111th 112th 113th 114th 115th	Elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Lost re-election.	2003–2013
Peter Roskam (Wheaton)	Republican	January 3, 2007 – January 3, 2019	110th 111th 112th 113th 114th 115th		2013–2023
Sean Casten (Downers Grove)	Democratic	January 3, 2019 – present	116th 117th 118th 119th	Elected in 2018. Re-elected in 2020. Re-elected in 2022. Re-elected in 2024.	2013–2023
Sean Casten (Downers Grove)	Democratic	January 3, 2019 – present	116th 117th 118th 119th		2023–present