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."Chapter 9 – Places" in Geographic Areas Reference Manual (GARM), United States Census Bureau. Accessed November 19, 2016. Prior to that, select unincorporated communities were surveyed in the U.S. Census.
Census designated places in Illinois CDPCountyLocation of CountyPopulation (2020)Population (2010)Population (2000)Population (1990)Population (1980)Notes Adair McDonough 212 210 Adams Adams 75 Alden McHenry 113 x x x x Alexander Morgan 155 x x x x Andres Will 43 x x x x Annapolis Crawford 106 Apple Canyon Lake Jo Daviess 574 558 Arbury Hills Will 1,132 x x x x Argyle Boone and Winnebago 332 x x x x Baileyville Ogle and Stephenson 187 x x x x Barstow Rock Island 89 x x x x Beason Logan 147 Beverly Adams 72 x x x x Big Foot Prairie McHenry 65 x x x x Blairsville Williamson 243 x x x x Bloomfield Adams 32 x x x x Bonnie Brae Will 1,287 x x x x Boody Macon 232 276 Boulder Hill Kendall 8,394 8,108 8,169 Buffalo Prairie Rock Island 64 x x x x Burton Adams 103 x x x x Burtons Bridge McHenry 226 x x x x Cable Mercer 117 x x x x Cameron Warren 188 x x x x Campbell's Island Rock Island 275 x x x x Candlewick Lake Boone 5,115 Carman Henderson 67 x x x x Channel Lake Lake 1,581 1,664 1,785 Chemung McHenry 276 308 Chestnut Logan 220 246 Como Whiteside 528 Coral McHenry 16 x x x x Cornland Logan 89 Coyne Center Rock Island 877 827 906 Crab Orchard Williamson 356 Crystal Lawns Will 1,830 x x x x Custer Park Will 112 x x x x Darmstadt St. Clair 49 Dayton LaSalle 528 537 Dewey Champaign 105 x x x x Dundas Richland 146 x x x x Eagle Lake Will 76 x x x x East Lynn Vermilion 90 x x x x Edgington Rock Island 391 x x x x Eliza Mercer 25 x x x x Elwin Macon 119 x x x x Fairmont Will 2,389 2,459 2,563 Fall Creek Adams 31 x x x x Floraville St. Clair 49 Forest Lake Lake 1,784 1,659 1,530 Fowler Adams 154 x x x x Fox Lake Hills Lake 2,684 2,591 2,561 Frankfort Square Will 8,968 9,276 7,766 Franklinville McHenry 38 x x x x Gages Lake Lake 10,637 10,198 10,415 Galt Whiteside 193 x x x x Garden Prairie Boone 300 Georgetown McDonough 368 Gilson Knox 156 Goodenow Will 60 x x x x Goofy Ridge Mason 210 350 Grand Detour Ogle 424 x x x x Grandwood Park Lake 5,297 5,202 4,521 Hamlet Mercer 21 x x x x Harding LaSalle 133 x x x x Harmony McHenry 20 x x x x Harrison Jackson 895 970 Hartland McHenry 157 x x x x Heritage Lake Tazewell 1,523 Holcomb Ogle 149 x x x x Holiday Shores Madison 2,840 2,882 Illinois City Rock Island 159 x x x x Ingalls Park Will 3,460 Janesville Coles and Cumberland 76 x x x x Joslin Rock Island 85 x x x x Kings Ogle 146 x x x x Kingston Adams 20 Knollwood Lake 2,121 1,747 x x x La Clede Fayette 113 x x x x Lake Camelot Peoria 1,798 1,686 x x x Lake Carroll Carroll 852 x x x x Lake Catherine Lake 1,279 1,379 1,490 Lake City Moultrie 69 x x x x Lake Holiday LaSalle 5,687 Lake of the Woods Champaign 2,403 2,912 3,026 Lake Petersburg Menard 740 719 Lake Summerset Stephenson and Winnebago 2,342 Lakewood Shelby 91 Lakewood Shores Will 665 1,347 Lane DeWitt 95 x x x x Langleyville Christian 391 432 LaPlace Piatt 239 Lawrence McHenry 220 x x x x Lee Center Lee 146 x x x x Literberry Morgan 71 x x x x Lockport Heights Will 749 x x x x Long Lake Lake 3,663 3,515 3,356 Lorenzo Will 26 x x x x Lost Nation Ogle 714 708 Lowpoint Woodford 148 x x x x Lynn Center Henry 85 x x x x Marcelline Adams 75 x x x x Marley Will 128 x x x x Merritt Scott 48 x x x x Meyer Adams 18 x x x x Millersburg Mercer 54 x x x x Mitchell Madison 1,217 Moro Madison 397 x x x x Mossville Peoria 268 x x x x Mulkeytown Franklin 162 175 Nachusa Lee 137 x x x x Nekoma Henry 23 x x x x Niota Hancock 114 x x x x Oak Run Knox 721 547 Olive Branch Alexander 650 864 Olivet Vermilion 336 428 Opdyke Jefferson 236 254 Ophiem Henry 123 x x x x Osco Henry 108 x x x x Oxville Scott 24 x x x x Paderborn St. Clair 35 Paloma Adams 114 x x x x Penfield Champaign 151 193 Pistakee Highlands McHenry 3,237 3,454 3,812 Plum Valley Will 632 x x x x Prairietown Madison 153 Preemption Mercer 254 x x x x Prestbury Kane 1,657 1,722 Preston Heights Will 2,898 2,575 2,527 Rentchler St. Clair 45 Rest Haven Will 502 x x x x Richfield Adams 26 Ridgefield McHenry 210 x x x x Ridgewood Will 2,956 x x x x Riggston Scott 14 x x x x Riley McHenry 10 x x x x Ritchie Will 190 x x x x Rock Island Arsenal Rock Island 182 149 145 Rockport Pike 67 x x x x Rome Peoria 1,604 1,738 1,776 Rosewood Heights Madison 3,971 Scott AFB St. Clair 3,688 3,709 2,707 Serena LaSalle 129 x x x x Seymour Champaign 317 303 Shirley McLean 135 x x x x Smithville Peoria 157 x x x x Solon Mills McHenry 133 x x x x Sunnyland Will 822 x x x x Swedona Mercer 109 x x x x Taylor Ridge Rock Island 141 x x x The Galena Territory Jo Daviess 1,500 1,058 Trilla Coles and Cumberland 156 x x x x Triumph LaSalle 100 x x x x Trivoli Peoria 385 x x x x Twin Grove McLean 1,524 1,564 Unity Alexander 98 x x x x Venetian Village Lake 2,761 2,826 3,802 Wedron LaSalle 140 x x x x West Liberty Jasper 96 West Union Clark 271 288 West York Crawford 74 Westervelt Shelby 131 128 130 Westlake Village Winnebago 1,493 x x x x White Heath Piatt 251 290 Whiteash Williamson 279 Willow Lake Stephenson 1,026 x x x x Willowbrook Will 1,346 2,076 2,130 Wilton Center Will 122 x x x x
Former census designated places in Illinois Goodings Grove, incorporated in 2001 and renamed as village of Homer Glen West Peoria, incorporated in 1993 Wonder Lake, annexed by village of Wonder Lake
See also List of municipalities in Illinois List of Illinois townships List of precincts in Illinois List of unincorporated communities in Illinois
References