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. History 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 9 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. Geographic boundaries 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. The boundaries became effective on January 3, 2013. 2021 redistricting Following the 2020 redistricting, this district will be primarily based in Lake County, bordering the state of Wisconsin, as well as northeast McHenry County and a part of northern Cook County. The 10th district takes in the Cook County communities of Winnetka, Glencoe, Kenilworth, Northbrook, and Wheeling. Lake County is split between this district, the 9th district, and the 11th district. They 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, N Fairfield Rd, W Chardon Rd, N Wilson Rd, W