There are 108 cities in St. Louis County, Missouri.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| St. Louis | 1 | Missouri | 275,506 | 300,496 | -2.22% | 4,464 | 61.72 |
| Florissant | 2 | Missouri | 50,687 | 52,449 | -0.86% | 4,038 | 12.55 |
| Chesterfield | 3 | Missouri | 48,904 | 49,952 | -0.53% | 1,536 | 31.84 |
| Oakville | 4 | Missouri | 35,522 | 36,117 | 0.15% | 2,237 | 15.88 |
| Wildwood | 5 | Missouri | 34,671 | 35,389 | -0.52% | 520 | 66.68 |
| University City | 6 | Missouri | 33,794 | 35,002 | -0.89% | 5,745 | 5.88 |
| Ballwin | 7 | Missouri | 30,167 | 31,139 | -0.8% | 3,359 | 8.98 |
| Mehlville | 8 | Missouri | 29,354 | 28,824 | 0.46% | 3,926 | 7.48 |
| Kirkwood | 9 | Missouri | 29,081 | 29,452 | -0.32% | 3,167 | 9.18 |
| Maryland Heights | 10 | Missouri | 27,347 | 28,257 | -0.83% | 1,250 | 21.88 |
| Hazelwood | 11 | Missouri | 24,675 | 25,427 | -0.76% | 1,539 | 16.04 |
| Webster Groves | 12 | Missouri | 23,268 | 23,992 | -0.77% | 3,935 | 5.91 |
| Old Jamestown | 13 | Missouri | 20,397 | 19,602 | 0.03% | 1,365 | 14.95 |
| Affton | 14 | Missouri | 20,264 | 19,580 | 0.85% | 4,434 | 4.57 |
| Concord | 15 | Missouri | 18,691 | 18,521 | 0.23% | 3,401 | 5.50 |
| Spanish Lake | 16 | Missouri | 18,420 | 17,682 | 1.01% | 2,499 | 7.37 |
| Creve Coeur | 17 | Missouri | 18,339 | 18,811 | -0.64% | 1,785 | 10.28 |
| Manchester | 18 | Missouri | 17,910 | 18,316 | -0.57% | 3,559 | 5.03 |
| Ferguson | 19 | Missouri | 17,832 | 18,487 | -0.91% | 2,891 | 6.17 |
| Clayton | 20 | Missouri | 17,499 | 17,347 | 0.22% | 6,980 | 2.51 |
| Lemay | 21 | Missouri | 16,009 | 16,565 | -0.63% | 3,914 | 4.09 |
| Overland | 22 | Missouri | 15,356 | 15,916 | -0.9% | 3,499 | 4.39 |
| Eureka | 23 | Missouri | 13,533 | 11,769 | 3.37% | 1,215 | 11.14 |
| Jennings | 24 | Missouri | 12,814 | 12,901 | -0.17% | 3,433 | 3.73 |
| St. Ann | 25 | Missouri | 12,545 | 12,996 | -0.89% | 3,976 | 3.15 |
| Crestwood | 26 | Missouri | 12,101 | 12,395 | -0.61% | 3,375 | 3.59 |
| Town Country | 27 | Missouri | 11,522 | 11,644 | -0.27% | 1,003 | 11.49 |
| Bridgeton | 28 | Missouri | 11,205 | 11,427 | -0.5% | 770 | 14.55 |
| Bellefontaine Neighbors | 29 | Missouri | 10,260 | 10,699 | -1.06% | 2,332 | 4.40 |
| Ellisville | 30 | Missouri | 9,741 | 9,981 | -0.61% | 2,232 | 4.37 |
| Des Peres | 31 | Missouri | 9,070 | 9,186 | -0.32% | 2,100 | 4.32 |
| Sunset Hills | 32 | Missouri | 8,994 | 9,181 | -0.52% | 1,002 | 8.98 |
| Richmond Heights | 33 | Missouri | 8,986 | 9,274 | -0.8% | 3,922 | 2.29 |
| Olivette | 34 | Missouri | 8,954 | 8,508 | 1.26% | 3,231 | 2.77 |
| Ladue | 35 | Missouri | 8,846 | 8,980 | -0.38% | 1,033 | 8.56 |
| Murphy | 36 | Missouri | 8,481 | 8,373 | 0.32% | 2,195 | 3.86 |
| Brentwood | 37 | Missouri | 8,020 | 8,219 | -0.62% | 4,107 | 1.95 |
| Berkeley | 38 | Missouri | 7,969 | 8,217 | -0.77% | 1,606 | 4.96 |
| Maplewood | 39 | Missouri | 7,969 | 8,256 | -0.9% | 5,092 | 1.56 |
| Pacific | 40 | Missouri | 7,644 | 7,283 | 1.19% | 1,118 | 6.84 |
| Sappington | 41 | Missouri | 6,917 | 7,161 | -0.87% | 2,889 | 2.39 |
| Valley Park | 42 | Missouri | 6,675 | 6,875 | -0.74% | 1,482 | 4.50 |
| Black Jack | 43 | Missouri | 6,503 | 6,641 | -0.53% | 2,515 | 2.59 |
| St. John | 44 | Missouri | 6,403 | 6,629 | -0.88% | 4,496 | 1.42 |
| Shrewsbury | 45 | Missouri | 6,191 | 6,398 | -0.83% | 4,296 | 1.44 |
| Glendale | 46 | Missouri | 6,010 | 6,172 | -0.68% | 4,634 | 1.30 |
| Glasgow Village | 47 | Missouri | 5,679 | 5,285 | 1.77% | 5,928 | 0.96 |
| High Ridge | 48 | Missouri | 5,045 | 4,257 | 4.06% | 1,338 | 3.77 |
| Dellwood | 49 | Missouri | 4,781 | 4,900 | -0.62% | 4,610 | 1.04 |
| Rock Hill | 50 | Missouri | 4,618 | 4,742 | -0.67% | 4,187 | 1.10 |
| Breckenridge Hills | 51 | Missouri | 4,312 | 4,455 | -0.83% | 5,383 | 0.80 |
| Normandy | 52 | Missouri | 4,190 | 4,280 | -0.55% | 2,261 | 1.85 |
| Fenton | 53 | Missouri | 4,025 | 4,115 | -0.57% | 642 | 6.27 |
| Woodson Terrace | 54 | Missouri | 3,844 | 3,950 | -0.7% | 4,960 | 0.78 |
| Frontenac | 55 | Missouri | 3,761 | 3,624 | 0.91% | 1,305 | 2.88 |
| Northwoods | 56 | Missouri | 3,550 | 3,681 | -0.92% | 5,086 | 0.70 |
| Byrnes Mill | 57 | Missouri | 3,188 | 3,176 | 0.09% | 620 | 5.14 |
| Castle Point | 58 | Missouri | 2,842 | 2,390 | -1.7% | 4,674 | 0.61 |
| Gray Summit | 59 | Missouri | 2,763 | 2,383 | 3.56% | 359 | 7.71 |
| Pine Lawn | 60 | Missouri | 2,658 | 2,756 | -0.93% | 4,294 | 0.62 |
| Green Park | 61 | Missouri | 2,649 | 2,708 | -0.56% | 2,024 | 1.31 |
| Clarkson Valley | 62 | Missouri | 2,522 | 2,605 | -0.83% | 936 | 2.69 |
| Pagedale | 63 | Missouri | 2,490 | 2,553 | -0.64% | 2,068 | 1.20 |
| Riverview | 64 | Missouri | 2,305 | 2,392 | -0.95% | 2,777 | 0.83 |
| Marlborough | 65 | Missouri | 2,167 | 2,218 | -0.6% | 9,546 | 0.23 |
| Moline Acres | 66 | Missouri | 2,076 | 2,154 | -0.95% | 3,623 | 0.57 |
| Bel-Ridge | 67 | Missouri | 2,059 | 2,133 | -0.91% | 2,664 | 0.77 |
| Warson Woods | 68 | Missouri | 1,970 | 2,018 | -0.6% | 3,468 | 0.57 |
| Hanley Hills | 69 | Missouri | 1,943 | 1,995 | -0.66% | 5,412 | 0.36 |
| Vinita Park | 70 | Missouri | 1,908 | 1,978 | -0.94% | 2,446 | 0.78 |
| Wellston | 71 | Missouri | 1,599 | 1,535 | 1.01% | 1,716 | 0.93 |
| St. George | 72 | Missouri | 1,582 | 2,168 | -8.45% | 6,564 | 0.24 |
| Lakeshire | 73 | Missouri | 1,500 | 1,555 | -0.92% | 6,696 | 0.22 |
| Winchester | 74 | Missouri | 1,390 | 1,440 | -0.93% | 5,538 | 0.25 |
| Oakland | 75 | Missouri | 1,363 | 1,391 | -0.51% | 2,260 | 0.60 |
| Bel-Nor | 76 | Missouri | 1,341 | 1,395 | -1.03% | 2,132 | 0.63 |
| Charlack | 77 | Missouri | 1,266 | 1,298 | -0.63% | 4,672 | 0.27 |
| Velda City | 78 | Missouri | 1,264 | 1,188 | 1.53% | 7,755 | 0.16 |
| LaBarque Creek | 79 | Missouri | 1,237 | 1,165 | 1.48% | 70 | 17.57 |
| Hillsdale | 80 | Missouri | 1,170 | 1,213 | -0.93% | 3,421 | 0.34 |
| Calverton Park | 81 | Missouri | 1,115 | 1,142 | -0.62% | 2,713 | 0.41 |
| Cool Valley | 82 | Missouri | 996 | 1,035 | -0.99% | 2,175 | 0.46 |
| Country Club Hills | 83 | Missouri | 987 | 1,014 | -0.7% | 5,306 | 0.19 |
| Grantwood Village | 84 | Missouri | 915 | 939 | -0.65% | 1,120 | 0.82 |
| Pasadena Hills | 85 | Missouri | 874 | 910 | -1.02% | 4,123 | 0.21 |
| Norwood Court | 86 | Missouri | 867 | 889 | -0.69% | 7,107 | 0.12 |
| Velda Village Hills | 87 | Missouri | 840 | 876 | -1.06% | 7,000 | 0.12 |
| Edmundson | 88 | Missouri | 836 | 858 | -0.71% | 3,051 | 0.27 |
| Bella Villa | 89 | Missouri | 724 | 752 | -0.96% | 5,656 | 0.13 |
| Flordell Hills | 90 | Missouri | 698 | 724 | -0.99% | 5,675 | 0.12 |
| Greendale | 91 | Missouri | 627 | 643 | -0.63% | 3,266 | 0.19 |
| Twin Oaks | 92 | Missouri | 581 | 595 | -0.68% | 2,160 | 0.27 |
| Sycamore Hills | 93 | Missouri | 541 | 557 | -0.73% | 4,037 | 0.13 |
| Crystal Lake Park | 94 | Missouri | 499 | 509 | -0.6% | 5,144 | 0.10 |
| Beverly Hills | 95 | Missouri | 453 | 471 | -1.09% | 5,033 | 0.09 |
| Pasadena Park | 96 | Missouri | 421 | 439 | -1.17% | 4,296 | 0.10 |
| Wilbur Park | 97 | Missouri | 420 | 432 | -0.71% | 7,119 | 0.06 |
| Huntleigh | 98 | Missouri | 349 | 356 | -0.57% | 352 | 0.99 |
| Westwood | 99 | Missouri | 305 | 315 | -0.97% | 485 | 0.63 |
| Uplands Park | 100 | Missouri | 301 | 311 | -0.99% | 4,561 | 0.07 |
| Kinloch | 101 | Missouri | 258 | 265 | -0.77% | 355 | 0.73 |
| Lake Tekakwitha | 102 | Missouri | 236 | 231 | 0.43% | 1,180 | 0.20 |
| Bellerive Acres | 103 | Missouri | 182 | 188 | -1.09% | 535 | 0.34 |
| Parkdale | 104 | Missouri | 154 | 156 | -0.65% | 1,203 | 0.13 |
| Glen Echo Park | 105 | Missouri | 113 | 117 | -0.88% | 3,531 | 0.03 |
| Peaceful Village | 106 | Missouri | 97 | 95 | 0% | 495 | 0.20 |
| Country Life Acres | 107 | Missouri | 70 | 73 | -1.41% | 565 | 0.12 |
| Champ | 108 | Missouri | 8 | 8 | 0% | 10 | 0.80 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
St. Louis is the largest city in St. Louis County.
Champ is the smallest city in St. Louis County.
There are 108 cities in St. Louis County, Missouri.