List of census-designated places in Illinois

This is a list of census-designated places in the U.S. state of Illinois, by county. Census-designated places (CDPs) are unincorporated communities lacking elected municipal officers and boundaries with legal status. The term "census designated place" has been used as an official classification by the U.S. Census Bureau since 1980. Prior to that, select unincorporated communities were surveyed in the U.S. Census.