The 10th congressional district of Illinois lies in the northeast corner of the state and mostly comprises northern suburbs of Chicago. It was created after the 1860 census. The district is currently represented by Democrat Brad Schneider.

The area of the district was originally represented by one of Abraham Lincoln's closest allies, Elihu B. Washburne (R-Waukegan). The district was created in 1982 redistricting out of districts represented by John Porter (R-Wilmette) and Robert McClory (R-Lake Bluff). On the retirement of McClory, the district was represented by Porter after winning the elections of 1982, 1984, 1986, 1988, 1990, 1992, 1994, 1996, and 1998. Following Porter's retirement, 11 Republicans and two Democrats ran to succeed him. Eventually nine Republicans and one Democrat stood for election in the primary of March 2000. John Porter's former Chief of Staff, Mark Kirk, won the Republican primary over number two rival Shaun Donnely. Kirk then defeated State Representative Lauren Beth Gash (D-Highland Park) by 2% in the 2000 general election. Kirk remained in Congress until he decided to run for the United States Senate in the 2010 election. He was succeeded by Republican Robert Dold.

The 10th is home to several Fortune 500 companies, including, but not limited to: CDW, Walgreens, Underwriters Laboratories, Baxter Healthcare, AbbVie, Allstate Insurance, and Mondelez International. The Naval Station Great Lakes near North Chicago, hosting the United States Navy's only boot camp, trains 38,000 recruits each year. 5.2% of the district's inhabitants have performed military service. Copyright National Journal.

History 2011 redistricting The district covers parts of Cook and Lake counties, as of the 2011 redistricting which followed the 2010 census. All or parts of Beach Park, Buffalo Grove, Deerfield, Fox Lake, Glencoe, Grayslake, Highland Park, Lake Bluff, Lake Forest, Lake Villa, Lindenhurst, Libertyville, Morton Grove, Mundelein, North Chicago, Northbrook, Prospect Heights, Round Lake, Round Lake Beach, Vernon Hills, Waukegan, Wheeling, and Zion are included.Illinois Congressional District 10 , Illinois Board of Elections 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:https://www2.census.gov/geo/maps/cong_dist/cd119/cd_based/ST17/CD119_IL10.pdf

Cook County (14)

Buffalo Grove (part, also 9th; shared with Lake County), Deerfield (part, shared with Lake County), Glencoe (part, also 5th and 9th), Glenview (part, also 9th), Kenilworth, New Trier Township (part, also 9th), Northbrook (part, also 9th), Northfield (part, also 9th), Northfield Township (part, also 5th and 9th), Prospect Heights (part, also 9th), Wheeling (part, also 9th), Wheeling Township (part, also 5th and 9th), Wilmette (part, also 9th), Winnetka

Lake County (53)

Antioch, Antioch Township, Avon Township, Bannockburn, Beach Park, Benton Township, Buffalo Grove (part, also 9th; shared with Lake County), Deerfield (part, shared with Cook County), Fox Lake (part, also McHenry County), Fremont Township (part, also 9th and 11th), Grant Township (part, also 11th; includes part of Long Lake), Grayslake, Green Oaks, Gurnee, Hainesville, Hawthorn Woods (part, also 9th), Highland Park, Highwood, Indian Creek, Lake Bluff, Lake Forest, Lake Villa, Lake Villa Township, Libertyville, Libertyville Township, Lincolnshire, Lindenhurst, Long Grove (part, also 5th and 9th), Mettawa, Moraine Township, Mundelein, Newport Township, North Chicago, Old Mill Creek, Park City, Riverwoods, Round Lake, Round Lake Beach, Round Lake Heights, Round Lake Park, Shields Township, Third Lake, Vernon Hills, Vernon Township (part, also 5th and 9th), Volo (part, also 11th), Wadsworth, Warren Township, Waukegan, Waukegan Township, West Deerfield Township, Winthrop Harbor, Zion, Zion Township

McHenry County (15)

Fox Lake (part, shared with Lake County), Greenwood, Greenwood Township (part, also 11th), Hebron, Hebron Township, Johnsburg, Lakemoor (part, also 11th; shared with Lake County), McCullom Lake (part, also 11th), McHenry (part, also 11th), McHenry Township (part, also 11th; includes Pistakee Highlands), Richmond, Richmond Township, Ringwood, Spring Grove, Wonder Lake

Recent election results from statewide races Year Office Results2008 PresidentObama 60% - 38%2012 PresidentObama 55% - 45%2016 PresidentClinton 58% - 35% SenateDuckworth 51% - 45% Comptroller (Spec.)Munger 49% - 46%2018 GovernorPritzker 52% - 43% Attorney GeneralRaoul 55% - 43% Secretary of StateWhite 69% - 29% ComptrollerMendoza 59% - 38% TreasurerFrerichs 56% - 41%2020 PresidentBiden 62% - 36% SenateDurbin 57% - 38%2022 SenateDuckworth 61% - 37% GovernorPritzker 61% - 36% Attorney GeneralRaoul 60% - 38% Secretary of StateGiannoulias 60% - 38% ComptrollerMendoza 61% - 37% TreasurerFrerichs 59% - 39%2024 PresidentHarris 60% - 38%

List of members representing the district Member Party Years Congress Electoral history District location District created March 4, 1863 Anthony L. Knapp Democratic March 4, 1863 –March 3, 1865 Redistricted from the and re-elected in 1862.Retired. Anthony Thornton Democratic March 4, 1865 –March 3, 1867 Elected in 1864.Retired. Albert G. Burr Democratic March 4, 1867 –March 3, 1871 Elected in 1866.Re-elected in 1868.Retired. Edward Y. Rice Democratic March 4, 1871 –March 3, 1873 Elected in 1870.Lost renomination. William H. Ray Republican March 4, 1873 –March 3, 1875 Elected in 1872.Retired. John C. Bagby Democratic March 4, 1875 –March 3, 1877 Elected in 1874.Retired. Benjamin F. Marsh Republican March 4, 1877 –March 3, 1883 Elected in 1876.Re-elected in 1878.Re-elected in 1880.Redistricted to the 11th district. Nicholas E. Worthington Democratic March 4, 1883 –March 3, 1887 Elected in 1882.Re-elected in 1884.Lost re-election. Philip S. Post Republican March 4, 1887 –January 6, 1895 Elected in 1886.Re-elected in 1888.Re-elected in 1890.Re-elected in 1892.Re-elected in 1894.Died. Vacant January 6, 1895 –December 2, 1895 George W. Prince Republican December 2, 1895 –March 3, 1903 Elected to finish Post's term.Re-elected in 1896.Re-elected in 1898.Re-elected in 1900.Redistricted to the . George E. Foss Republican March 4, 1903 –March 3, 1913 Redistricted from the and re-elected in 1902.Re-elected in 1904.Re-elected in 1906.Re-elected in 1908.Re-elected in 1910.Lost re-election. Charles M. Thomson Progressive March 4, 1913 –March 3, 1915 Elected in 1912.Lost re-election. George E. Foss Republican March 4, 1915 –March 3, 1919 Elected in 1914.Re-elected in 1916.Retired to run for U.S. Senator. Carl R. Chindblom Republican March 4, 1919 –March 3, 1933 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.Lost renomination. James Simpson Jr. Republican March 4, 1933 –January 3, 1935 Elected in 1932.Lost renomination. Ralph E. Church Republican January 3, 1935 –January 3, 1941 Elected in 1934.Re-elected in 1936.Re-elected in 1938.Retired to run for U.S. Senator. George A. Paddock Republican January 3, 1941 –January 3, 1943 Elected in 1940.Lost renomination. Ralph E. Church Republican January 3, 1943 –January 3, 1949 Elected in 1942.Re-elected in 1944.Re-elected in 1946.Redistricted to the .Richard W. Hoffman Republican January 3, 1949 –January 3, 1957 Elected in 1948.Re-elected in 1950.Re-elected in 1952.Re-elected in 1954.Retired. Harold R. Collier Republican January 3, 1957 –January 3, 1973 Elected in 1956.Re-elected in 1958.Re-elected in 1960.Re-elected in 1962.Re-elected in 1964.Re-elected in 1966.Re-elected in 1968.Re-elected in 1970.Redistricted to the . Samuel H. Young Republican January 3, 1973 –January 3, 1975 Elected in 1972.Lost re-election. Abner Mikva Democratic January 3, 1975 –September 26, 1979 Elected in 1974.Re-elected in 1976.Re-elected in 1978.Resigned to become judge of U.S. Court of Appeals. Vacant September 26, 1979 –January 22, 1980 John Edward Porter Republican January 22, 1980 –January 3, 2001 Elected to finish Mikva's term.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.Retired. Mark Kirk Republican January 3, 2001 –November 29, 2010 Elected in 2000.Re-elected in 2002.Re-elected in 2004.Re-elected in 2006.Re-elected in 2008.Retired to run for U.S. senator, and then resigned when elected. 2003–2013 Vacant November 29, 2010 –January 3, 2011 Bob Dold Republican January 3, 2011 –January 3, 2013 Elected in 2010.Lost re-election. Brad Schneider Democratic January 3, 2013 –January 3, 2015 Elected in 2012.Lost re-election. 2013–2023 Bob Dold Republican January 3, 2015 –January 3, 2017 Elected in 2014.Lost re-election. Brad Schneider Democratic January 3, 2017 –present Elected in 2016.Re-elected in 2018.Re-elected in 2020.Re-elected in 2022.Re-elected in 2024. 2023–present

Recent election results Year Republicancandidate Republicanpercentage Democraticcandidate Democraticpercentage 2000 Kirk 51 Gash 49 2002 Kirk 69 Perritt 31 2004 Kirk 65 Goodman 35 2006 Kirk 53 Seals 47 2008 Kirk 53 Seals 47 2010 Dold 51 Seals 49 2012 Dold 49 Schneider 51 2014 Dold 51 Schneider 49 2016 Dold 47 Schneider 53 2018 Bennett 34 Schneider 66 2020 Mukherjee 36 Schneider 64

2006

Republican candidate for Governor, Judy Baar Topinka, and GOP candidate for Cook County Board President Tony Peraica both handily won the district in 2006, although both lost in the state- and countywide (respectively) count.

2008

Dan Seals, who had previously run against Mark Kirk in 2006, defeated Clinton Advisor Jay Footlik for the 2008 Democratic nomination. Dave Kalbfleisch received the Green Party nomination, but was removed from the ballot by the Illinois State Board of Elections. Independent candidate Allan Stevo was also nominated. Mark Kirk defeated Dan Seals in their rematch from 2006 by 54% to 46%, thus winning a fifth term in the House.

2010

The Republican Party nominee, Robert Dold, won against the Democratic Party nominee, Dan Seals.

2012

Robert Dold no longer lives in the redrawn district, but said he would move into the district if he won re-election.

Candidates for the Democratic nomination were: Ilya Sheyman, a community organizer from Waukegan, Brad Schneider, a business consultant, John Tree, a business executive and Colonel in the Air Force Reserve, and Vivek Bavda, an intellectual property attorney.

In the March 20, 2012, primary, Brad Schneider won the Democratic nomination.Schneider survives in 10th district Dem primary, Chicago Sun-Times, March 20, 2012. Schneider defeated Dold in the general election in November.

2014

Brad Schneider, the incumbent, was selected to be the Democratic nominee, and Robert Dold was once again selected to be the Republican nominee. Dold won the election with just over 50% of the vote.

2016

Brad Schneider defeated Highland Park Mayor Nancy Rotering for the Democratic nomination on March 15. Democrat Brad Schneider defeated Republican Robert Dold by nearly 5% (14,000 votes), the largest victory margin in Illinois's 10th Congressional district since redistricting.

2018

Brad Schneider, the incumbent, defeated his republican challenger Douglas R. Bennett with 65.6% of the vote.The Washington Post There were three Republican candidates who ran in the primary: Bennett of Deerfield, who is a computer consultant and vice chairman of the West Deerfield Township Republican Organization, Libertyville physician and business owner Sapan Shah, and Jeremy Wynes of Highland Park.

Robert Dold declined to run for a fifth time.

On March 20, Douglas Bennett narrowly beat Wynes and Shah in the primary.

2020