Largest cities (over 30,000 in 2000) | Aurora, Illinois * Berwyn, Illinois * Calumet City, Illinois * Chicago Heights, Illinois * Crystal Lake, Illinois * DeKalb, Illinois * Des Plaines, Illinois * East Chicago, Indiana * Elgin, Illinois * Elmhurst, Illinois * Evanston, Illinois * Gary, Indiana * Hammond, Indiana * Harvey, Illinois * Highland Park, Illinois * Joliet, Illinois * Kenosha, Wisconsin * Naperville, Illinois * North Chicago, Illinois * Park Ridge, Illinois * Portage, Indiana * St. Charles, Illinois * Waukegan, Illinois * Wheaton, Illinois |
Largest towns and villages (over 30,000 in 2000) | Addison, Illinois * Arlington Heights, Illinois * Bartlett, Illinois * Bolingbrook, Illinois * Buffalo Grove, Illinois * Carol Stream, Illinois * Carpentersville, Illinois * Cicero, Illinois * Downers Grove, Illinois * Elk Grove Village, Illinois * Glendale Heights, Illinois * Glenview, Cook County, Illinois * Hanover Park, Illinois * Hoffman Estates, Illinois * Lombard, Illinois * Merrillville, Indiana * Mount Prospect, Illinois * Mundelein, Illinois * Niles, Illinois * Northbrook, Illinois * Oak Lawn, Illinois * Oak Park, Illinois * Orland Park, Illinois * Palatine, Illinois * Schaumburg, Illinois * Skokie, Illinois * Streamwood, Illinois * Tinley Park, Illinois * Wheeling, Illinois * Woodridge, Illinois |