Illinois' 10th Congressional District

All of: Antioch, Bannockburn, Beach Park, Grayslake, Green Oaks, Gurnee, Hainesville, Hebron, Highland Park, Highwood, Johnsburg, Kenilworth, Lake Bluff, Lake Forest, Lake Villa, Libertyville, Lindenhurst, Mundelein, North Chicago, Park City, Richmond, Riverwoods, Round Lake, Round Lake Beach, Round Lake Heights, Round Lake Park, Spring Grove, Vernon Hills, Wadsworth, Waukegan, Winnetka, and Zion.

Parts of: Buffalo Grove, Deerfield, Fox Lake, Glencoe, Glenview, Lakemoor, McHenry, Morton Grove, Northbrook, Northfield, Prospect Heights, Wheeling, Wilmette, and Wonder Lake