Illinois's 9th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Jan Schakowsky D–Evanston
Area	172.3 mi2 (446 km2)
Distribution	100.0% urban 0.0% rural
Population (2024)	740,435
Median household income	$90,111[1]
Ethnicity	59.2%White 14.9%Asian 13.0%Hispanic 8.6%Black 3.6%Two or more races 0.7% other
Cook PVI	D+19[2]

The9th congressional district of Illinois covers parts ofCook,Lake, andMcHenry counties as of the 2021 redistricting which followed the2020 United States census. It includes all or parts ofChicago,Evanston,Glenview,Skokie,Morton Grove,Niles,Northfield,Prospect Heights,Wilmette,Buffalo Grove,Hawthorn Woods,Wauconda,Island Lake,Long Grove,Lake Barrington,Algonquin Township,Cary,Crystal Lake,Lake in the Hills,Lakewood,Oakwood Hills,Trout Valley,Algonquin,Port Barrington,Barrington Hills, andFox River Grove. It is anchored in Chicago'sNorth Side, alongLake Michigan, and covers many of Chicago's northern suburbs.DemocratJan Schakowsky has represented the district since January 1999. Schakowsky has announced that she would not seek reelection in2026.

The district is one of the most reliablyDemocratic of allcongressional districts in Chicago, and in all ofIllinois: It has been in Democratic hands without interruptionsince 1949.

• Chicago – 2,665,039
• Evanston – 78,110
• Arlington Heights – 77,676
• Skokie – 67,824
• Des Plaines – 60,675
• Mount Prospect – 56,852
• Glenview – 48,705
• Buffalo Grove – 43,212
• Crystal Lake – 40,269
• Park Ridge – 39,656
• Wheeling – 39,137
• Northbrook – 35,222
• Niles – 30,912
• Algonquin – 29,700
• Lake in the Hills – 28,982
• Wilmette – 28,170
• Morton Grove – 25,297
• Lake Zurich – 19,759
• Cary – 17,826
• Prospect Heights – 16,058
• Wauconda – 14,084
• Lincolnwood – 13,463

• Hawthorn Woods – 9,062
• Glencoe – 8,849
• Long Grove – 8,366
• Northfield – 5,751
• Island Lake – 5,201
• Lake Barrington – 5,100
• Fox River Grove – 4,702
• Lakewood – 4,283
• Barrington Hills – 4,114
• Kildeer – 4,091
• North Barrington – 3,171

As of the 2020 redistricting, this district will still be based largely inChicago's Far North Side and northernCook County, as well as now parts of southwestLake County and southeastMcHenry County.

The 9th district takes in theChicago neighborhoods ofRogers Park,Edgewater, andWest Ridge; most ofUptown; and part ofLincoln Square.

Outside of the Chicago city limits, the district takes in theCook County communities ofEvanston,Glenview,Skokie,Morton Grove,Niles,Lincolnwood, andGolf; most ofNorthfield andProspect Heights; northeasternPark Ridge andArlington Heights; westernNorthfield andBuffalo Grove (shared with Lake County); southeasternNorthbrook; northernMount Prospect; half ofWilmette south of Lake Ave; most ofProspect Heights; and part ofGlencoe,Des Plaines, andWheeling (shared with Lake County).

Lake County is split between this district, the5th district, the10th district, and the11th district. The 9th and 5th districts are partitioned by partitioned by the Fox River, Kelsey Rd, W Miller Rd, Echo Lake Rd, Sacomano Meadows Pond 1, Midlothian Rd, N Old Henry Rd, N Quentin Rd, Lake Zurich Rd, Twin Orchard Country Club, Mundelein Rd, Hicks Rd, Bridgewater Farm, Crossing Pond Park, and Arlington Heights Rd.

The 9th, 10th, and 11th districts are partitioned by Buffalo Grove Golf Course, Buffalo Grove Rd, Arboretum Golf Club, W Half Day Rd, Promontory Ridge Trail, Port Clinton Rd, Mundelein Rd, Highland Pines Park, Diamond Lake Rd, Breckinridge Dr, N Midlothian Rd, Illinois Route 60, W Hawley St, N Chevy Chase Rd, Steeple Chase Golf Club, W Lakeview Parkway, N Gilmer Rd, Hawley St, 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 9th district takes in the communities ofForest Lake andTower Lakes; most ofHawthorn Woods; westernBuffalo Grove (shared with Cook County); and part ofWauconda,Island Lake,Long Grove,Lake Barrington,Kildeer,Lake Zurich,North Barrington,Port Barrington (shared with McHenry County), andFox River Grove (shared with McHenry County).

McHenry County is split between this district and the11th district. They are partitioned by E Crystal Lake Ave, Meridian Ln, Crystal Lake Country Club, Woodscreek Park, Boulder Ridge Country Club, and Fairway View Dr. The 9th district takes in the entirety ofAlgonquin Township, which includes the communities ofCary andTrout Valley; most ofLake in the Hills andCrystal Lake; northAlgonquin; and part ofPort Barrington (shared with Lake County),Barrington Hills,Fox River Grove (shared with Lake County), andLakewood.

Member	Party	Years	Cong ress	Electoral history	District boundries
District created March 4, 1853
Willis Allen (Marion)	Democratic	March 4, 1853 – March 3, 1855	33rd	Redistricted from the2nd district andre-elected in 1852. [data missing]
Samuel S. Marshall (McLeansboro)	Democratic	March 4, 1855 – March 3, 1859	34th 35th	Elected in 1854. Re-elected in 1856. [data missing]
John A. Logan (Benton)	Democratic	March 4, 1859 – April 2, 1862	36th 37th	Elected in 1858 Re-elected in 1860. Resigned to join theUnion Army.
Vacant		April 2, 1862 – June 2, 1862	37th
William J. Allen (Marion)	Democratic	June 2, 1862 – March 3, 1863		Elected to finish Logan's term. Redistricted to the13th district.
Lewis Winans Ross (Lewiston)	Democratic	March 4, 1863 – March 3, 1869	38th 39th 40th	Elected in 1862. Re-elected in 1864. Re-elected in 1866. [data missing]
Thompson W. McNeely (Petersburg)	Democratic	March 4, 1869 – March 3, 1873	41st 42nd	Elected in 1868. Re-elected in 1870. [data missing]
Granville Barrere (Canton)	Republican	March 4, 1873 – March 3, 1875	43rd	Elected in 1872. [data missing]
Richard H. Whiting (Peoria)	Republican	March 4, 1875 – March 3, 1877	44th	Elected in 1874. [data missing]
Thomas A. Boyd (Lewiston)	Republican	March 4, 1877 – March 3, 1881	45th 46th	Elected in 1876. Re-elected in 1878. [data missing]
John H. Lewis (Knoxville)	Republican	March 4, 1881 – March 3, 1883	47th	Elected in 1880. [data missing]
Lewis E. Payson (Pontiac)	Republican	March 4, 1883 – March 3, 1891	48th 49th 50th 51st	Redistricted from the8th district andre-elected in 1882. Re-elected in 1884. Re-elected in 1886. Re-elected in 1888. [data missing]
Herman W. Snow (Sheldon)	Democratic	March 4, 1891 – March 3, 1893	52nd	Elected in 1890. [data missing]
Hamilton K. Wheeler (Kankakee)	Republican	March 4, 1893 – March 3, 1895	53rd	Elected in 1892. [data missing]
Robert R. Hitt (Mount Morris)	Republican	March 4, 1895 – March 3, 1903	54th 55th 56th 57th	Redistricted from the6th district andre-elected in 1894. Re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Redistricted to the13th district.
Henry S. Boutell (Chicago)	Republican	March 4, 1903 – March 3, 1911	58th 59th 60th 61st	Redistricted from the6th district andre-elected in 1902. Re-elected in 1904. Re-elected in 1906. Re-elected in 1908. [data missing]
Lynden Evans (Chicago)	Democratic	March 4, 1911 – March 3, 1913	62nd	Elected in 1910. [data missing]
Frederick A. Britten (Chicago)	Republican	March 4, 1913 – January 3, 1935	63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd 73rd	Elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Re-elected in 1932. Lost re-election.
James McAndrews (Chicago)	Democratic	January 3, 1935 – January 3, 1941	74th 75th 76th	Elected in 1934. Re-elected in 1936. Re-elected in 1938. Lost re-election.
Charles S. Dewey (Chicago)	Republican	January 3, 1941 – January 3, 1945	77th 78th	Elected in 1940. Re-elected in 1942. Lost re-election.
Alexander J. Resa (Chicago)	Democratic	January 3, 1945 – January 3, 1947	79th	Elected in 1944. Lost re-election.
Robert Twyman (Chicago)	Republican	January 3, 1947 – January 3, 1949	80th	Elected in 1946. Retired.
Sidney R. Yates (Chicago)	Democratic	January 3, 1949 – January 3, 1963	81st 82nd 83rd 84th 85th 86th 87th	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. Retired torun for U.S. Senator.
Edward R. Finnegan (Chicago)	Democratic	January 3, 1963 – December 6, 1964	88th	Redistricted from the12th district andre-elected in 1962. Resigned when appointed Judge of the Circuit Court of Cook County, IL.
Vacant		December 6, 1964 – January 3, 1965
Sidney R. Yates (Chicago)	Democratic	January 3, 1965 – January 3, 1999	89th 90th 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th	Elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Re-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. Retired.
Jan Schakowsky (Evanston)	Democratic	January 3, 1999 – present	106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th 118th 119th	Elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. Re-elected in 2024. Retiring at the end of term.	2003–2013
					2013–2023
					2023–present

• Illinois's congressional districts
• List of United States congressional districts
• 2026 United States House of Representatives elections in Illinois#District 9

• 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

• Washington Post page on the 9th District of Illinois
• U.S. Census Bureau - 9th District Fact SheetArchived July 17, 2011, at theWayback Machine

42°03′10″N87°48′37″W / 42.05278°N 87.81028°W /42.05278; -87.81028

• Congressional districts of Illinois
• Government of Cook County, Illinois
• Constituencies established in 1853
• 1853 establishments in Illinois
• Sidney R. Yates

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