St. Louis County has 88 municipalities and 10 unincorporated census-designated places:
| Municipality | Population [1] | Total Area (mi2) [2] | Population Density/sq mi | |
|---|---|---|---|---|
| Ballwin | 31,283 | 8.95 | 3,494.6 | |
| Bella Villa | 687 | 0.1 | 5,468.3 | |
| Bellefontaine Neighbors | 11,271 | 4.4 | 2,573.2 | |
| Bellerive | 254 | 0.4 | 713.0 | |
| Bel-Nor | 1,598 | 0.6 | 2,555.5 | |
| Bel-Ridge | 3,082 | 0.8 | 3,799.0 | |
| Berkeley | 10,063 | 4.9 | 2,040.6 | |
| Beverly Hills | 603 | 0.1 | 6,882.0 | |
| Black Jack | 6,792 | 2.7 | 2,553.3 | |
| Breckenridge Hills | 4,817 | 0.8 | 5,890.1 | |
| Brentwood | 7,693 | 1.9 | 3,948.4 | |
| Bridgeton | 15,550 | 15.2 | 1,067.1 | |
| Calverton Park | 1,322 | 0.4 | 3,154.5 | |
| Champ | 12 | 0.8 | 14.4 | |
| Charlack | 1,431 | 0.3 | 5,463.1 | |
| Chesterfield | 46,635 | 32.7 | 1,485.4 | |
| Clarkson Valley | 2,675 | 2.7 | 995.1 | |
| Clayton | 16,061 | 2.5 | 5,164.4 | |
| Cool Valley | 1,081 | 0.5 | 2,244.1 | |
| Country Club Hills | 1,381 | 0.2 | 7,761.7 | |
| Country Life Acres | 81 | 0.1 | 725.5 | |
| Crestwood | 11,863 | 3.6 | 3,296.2 | |
| Creve Coeur | 16,500 | 10.1 | 1,628.9 | |
| Crystal Lake Park | 457 | 0.1 | 4,787.5 | |
| Dellwood | 5,255 | 1.0 | 5,108.2 | |
| Des Peres | 8,592 | 4.4 | 1,954.3 | |
| Edmundson | 840 | 0.3 | 3,018.0 | |
| Ellisville | 9,104 | 4.3 | 2,094.1 | |
| Eureka | 7,676 | 10.1 | 763.7 | |
| Fenton | 4,360 | 6.4 | 710.7 | |
| Ferguson | 22,406 | 6.19 | 3,620.6 | |
| Flordell Hills | 931 | 0.1 | 8,111.7 | |
| Florissant | 51,812 | 11.7 | 4,442.4 | |
| Frontenac | 3,483 | 2.9 | 1,221.3 | |
| Glendale | 5,767 | 1.3 | 4,474.6 | |
| Grantwood Village | 883 | 0.8 | 1,054.1 | |
| Greendale | 722 | 0.2 | 3,480.3 | |
| Green Park | 2,666 | 1.4 | 1,909.0 | |
| Hanley Hills | 2,101 | 0.36 | 5,836.1 | |
| Hazelwood | 26,206 | 15.88 | 1,649.9 | |
| Hillsdale | 1,477 | 0.3 | 4,226.3 | |
| Huntleigh | 323 | 1.0 | 324.4 | |
| Jennings | 15,469 | 3.7 | 4,193.3 | |
| Kinloch | 449 | 0.7 | 616.5 | |
| Kirkwood | 27,324 | 9.23 | 2,961.3 | |
| Ladue | 8,645 | 8.6 | 414.0 | |
| Lakeshire | 4,387 | 2.28 | 2,160.0 | |
| Manchester | 19,161 | 5.0 | 3,834.6 | |
| Maplewood | 9,228 | 1.5 | 5,963.8 | |
| Marlborough | 2,235 | 0.2 | 9,829.4 | |
| Maryland Heights | 25,756 | 21.39 | 1,204.4 | |
| Castle Point | 2,710 | 10.07 | 3,107.5 | |
| Moline Acres | 2,662 | 0.6 | 4,720.6 | |
| Normandy | 5,153 | 1.8 | 2,826.3 | |
| Northwoods | 4,643 | 0.7 | 6,545.7 | |
| Norwood Court | 1,061 | 0.1 | 7,783.2 | |
| Oakland | 1,540 | 0.6 | 2,545.7 | |
| Olivette | 7,438 | 2.8 | 2,667.5 | |
| Overland | 16,838 | 4.4 | 3,842.8 | |
| Pagedale | 3,616 | 1.2 | 3,003.8 | |
| Pasadena Hills | 1,147 | 0.2 | 5,044.0 | |
| Pasadena Park | 489 | 0.1 | 5,506.5 | |
| Pine Lawn | 4,204 | 0.6 | 6,942.5 | |
| Richmond Heights | 9,602 | 2.3 | 4,191.5 | |
| Riverview | 3,146 | 0.8 | 3,932.5 | |
| Rock Hill | 4,609 | 1.1 | 4,190.0 | |
| Shrewsbury | 6,644 | 1.4 | 4,655.4 | |
| St. Ann | 13,607 | 3.1 | 4,352.8 | |
| St. John | 6,871 | 1.4 | 4,825.8 | |
| Sunset Hills | 8,267 | 9.0 | 915.3 | |
| Sycamore Hills | 722 | 0.1 | 5,249.0 | |
| Town and Country | 10,894 | 11.9 | 916.8 | |
| Twin Oaks | 362 | 0.3 | 1,403.8 | |
| University City | 37,428 | 5.88 | 6,363.1 | |
| Uplands Park | 460 | 0.1 | 6,904.3 | |
| Valley Park | 6,518 | 3.2 | 2,156.2 | |
| Velda City | 1,616 | 0.2 | 9,872.7 | |
| Velda Village Hills | 1,090 | 0.1 | 9,235.6 | |
| Vinita Park | 1,924 | 0.7 | 2,628.7 | |
| Warson Woods | 1,983 | 0.6 | 3,352.6 | |
| Webster Groves | 23,230 | 5.90 | 3,937.5 | |
| Wellston | 2,460 | 0.9 | 2,732.6 | |
| Westwood | 284 | 0.6 | 453.7 | |
| Wilbur Park | 475 | 0.1 | 7,882.2 | |
| Wildwood | 32,884 | 66.03 | 498.0 | |
| Winchester | 1,651 | 0.2 | 6,723.0 | |
| Woodson Terrace | 4,189 | 0.8 | 5,346.2 |
| Municipality | Points of Interest | Status | Image | Map | Description | |
|---|---|---|---|---|---|---|
| Affton | Census Designated Place | |||||
| Ballwin | Queeny Park | City | ||||
| Bella Villa | City | |||||
| Bellefontaine Neighbors | City | |||||
| Bellerive | Village | |||||
| Bel-Nor | Village | |||||
| Bel-Ridge | Village | |||||
| Berkeley | City | |||||
| Beverly Hills | City | |||||
| Black Jack | City | |||||
| Breckenridge Hills | City | |||||
| Brentwood | City | |||||
| Bridgeton | City | |||||
| Calverton Park | City | |||||
| Carsonville | Unincorporated place | |||||
| Castle Point | Census Designated Place / Not an incorporated municipality | |||||
| Champ | Village | |||||
| Charlack | City | |||||
| Chesterfield | City | |||||
| Clarkson Valley | City | |||||
| Clayton | City | |||||
| Concord | Census Designated Place | |||||
| Cool Valley | City | |||||
| Country Club Hills | City | |||||
| Country Life Acres | Village | |||||
| Crestwood | City | |||||
| Creve Coeur | City | |||||
| Crystal Lake Park | City | |||||
| Dellwood | City | |||||
| Des Peres | City | |||||
| Edmundson | City | |||||
| Ellisville | City | |||||
| Eureka | Six Flags St. Louis | City | ||||
| Fenton | Town | |||||
| Ferguson | City | |||||
| Flordell Hills | City | |||||
| Florissant | City | |||||
| Frontenac | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| Glencoe | Unincorporated community | |||||
| Glendale | City | |||||
| Grantwood Village | Village | |||||
| Greendale | City | |||||
| Green Park | City | |||||
| Grover | Unincorporated community | |||||
| Hanley Hills | Village | |||||
| Hazelwood | City | |||||
| Hillsdale | Village | |||||
| Huntleigh | City | |||||
| Jennings | City | |||||
| Kinloch | City | |||||
| Kirkwood | City | |||||
| Ladue | City | |||||
| Lakeshire | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| Manchester | City | |||||
| Maplewood | City | |||||
| Marlborough | Village | |||||
| Maryland Heights | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| Moline Acres | City | |||||
| Normandy | City | |||||
| Northwoods | City | |||||
| Norwood Court | Village | |||||
| Oakland | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| Old Jamestown | Census Designated Place / Not an incorporated municipality | |||||
| Olivette | City | |||||
| Overland | City | |||||
| Pagedale | City | |||||
| Pasadena Hills | Village | |||||
| Pasadena Park | Village | |||||
| Unincorporated community | ||||||
| Pine Lawn | City | |||||
| Pond | Populated place | |||||
| Richmond Heights | City | |||||
| Riverview | Village | |||||
| Rock Hill | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| Unincorporated community | ||||||
| Shrewsbury | City | |||||
| Census Designated Place / Not an incorporated municipality | ||||||
| St. Ann | City | |||||
| St. George | Census Designated Place (Disincorporated 2011) | |||||
| St. John | City | |||||
| Sunset Hills | City | |||||
| Sycamore Hills | Village | |||||
| Times Beach | Ghost town | |||||
| Town and Country | City | |||||
| Twin Oaks | Village | |||||
| University City | City | |||||
| Uplands Park | Village | |||||
| Valley Park | City | |||||
| Velda City | City | |||||
| Velda Village Hills | Village | |||||
| Vinita Park | City | |||||
| Warson Woods | City | |||||
| Webster Groves | City | |||||
| Wellston | City | |||||
| Westwood | Village | |||||
| Wilbur Park | Village | |||||
| Wildwood | City | |||||
| Winchester | City | |||||
| Woodson Terrace | City |