| 1 | Murphy CDP (south) | 7,903 |
| 2 | LaBarque Creek CDP (north-northeast) | 6,892 |
| 3 | Barnhart CDP (south-southeast) | 6,764 |
| 4 | Imperial CDP (north-northwest) | 6,658 |
| 5 | Horine CDP (east-northeast) | 6,573 |
| 6 | Raintree Plantation CDP | 6,555 |
| 7 | Horine CDP (north-northwest) | 6,272 |
| 8 | Festus city (east-northeast) | 6,075 |
| 9 | Festus city (northeast) | 5,923 |
| 10 | Olympian Village city (northeast) | 5,890 |
| 11 | De Soto city | 5,793 |
| 12 | Arnold city (northwest) | 5,756 |
| 13 | Herculaneum city | 5,743 |
| 14 | Byrnes Mill city (east-southeast) | 5,739 |
| 15 | Imperial CDP (west-northwest) | 5,648 |
| 16 | Byrnes Mill city (west-northwest) | 5,394 |
| 17 | Imperial CDP (south-southeast) | 5,366 |
| 18 | Horine CDP (south-southwest) | 5,194 |
| 19 | High Ridge CDP (east-southeast) | 5,164 |
| 20 | Cedar Hill Lakes village | 4,893 |
| 21 | Briarwood Estates CDP | 4,885 |
| 22 | Festus city (west-southwest) | 4,817 |
| 23 | Parkdale village (east-northeast) | 4,592 |
| 24 | Barnhart CDP (north-northeast) | 4,560 |
| 25 | LaBarque Creek CDP (south-southwest) | 4,512 |
| 26 | Crystal City city | 4,422 |
| 27 | Summer Set CDP (south-southwest) | 4,416 |
| 28 | Imperial CDP (east-northeast) | 4,337 |
| 29 | Arnold city (southeast) | 4,219 |
| 30 | Arnold city (east 1) | 4,134 |
| 31 | High Ridge CDP (west-northwest) | 4,107 |
| 32 | Murphy CDP (west-northwest) | 4,084 |
| 33 | Parkdale village (west-southwest) | 4,013 |
| 34 | Arnold city (west-southwest) | 3,982 |
| 35 | Arnold city (east 2) | 3,893 |
| 36 | Olympian Village city (southwest) | 3,789 |
| 37 | Murphy CDP (south-southwest) | 3,746 |
| 38 | Cedar Hill CDP (west-southwest) | 3,728 |
| 39 | Barnhart CDP (northwest) | 3,444 |
| 40 | Summer Set CDP (north-northeast) | 3,242 |
| 41 | Cedar Hill CDP (east-northeast) | 3,152 |
| 42 | Imperial CDP (south) | 2,988 |
| 43 | Byrnes Mill city (south-southeast) | 2,945 |
| 44 | Imperial CDP (northwest) | 2,934 |
| 45 | Pevely city (south) | 2,927 |
| 46 | Murphy CDP (northeast) | 2,906 |
| 47 | Murphy CDP (east-northeast) | 2,852 |
| 48 | Pevely city (north) | 2,528 |
| 49 | Arnold city (west-northwest) | 1,878 |