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.
[1] The term "census designated place" has been used as an official classification by the U.S. Census Bureau since 1980.
[2] Prior to that, select unincorporated communities were surveyed in the U.S.
Census.