Jefferson County, Missouri
Jefferson County profile, demographic data, and geographic information.
Cities & Towns in Jefferson County
Constituent municipalities and census communities located within Jefferson County.
| City / Town Name | Classification | Census GEOID | Land Area |
|---|---|---|---|
| Arnold city | City | 2901972 | 11.49 sq mi |
| Barnhart CDP | CDP | 2903394 | 4.96 sq mi |
| Briarwood Estates CDP | CDP | 2908294 | 0.68 sq mi |
| Byrnes Mill city | City | 2910240 | 5.16 sq mi |
| Cedar Hill CDP | CDP | 2912358 | 2.30 sq mi |
| Cedar Hill Lakes village | Village | 2912376 | 0.22 sq mi |
| Crystal City city | City | 2917632 | 4.65 sq mi |
| De Soto city | City | 2919252 | 4.55 sq mi |
| Eureka city | City | 2922834 | 11.16 sq mi |
| Festus city | City | 2924094 | 5.98 sq mi |
| Herculaneum city | City | 2931708 | 4.17 sq mi |
| High Ridge CDP | CDP | 2932140 | 3.77 sq mi |
| Hillsboro city | City | 2932248 | 3.84 sq mi |
| Horine CDP | CDP | 2933040 | 0.70 sq mi |
| Imperial CDP | CDP | 2934354 | 5.24 sq mi |
| Kimmswick city | City | 2938684 | 0.23 sq mi |
| LaBarque Creek CDP | CDP | 2939503 | 17.56 sq mi |
| Lake Tekakwitha village | Village | 2940214 | 0.20 sq mi |
| Murphy CDP | CDP | 2950834 | 3.86 sq mi |
| Olympian Village city | City | 2954686 | 0.57 sq mi |
| Parkdale village | Village | 2956226 | 0.13 sq mi |
| Peaceful Village village | Village | 2956620 | 0.20 sq mi |
| Pevely city | City | 2957278 | 5.09 sq mi |
| Raintree Plantation CDP | CDP | 2960528 | 1.95 sq mi |
| Scotsdale town | Town | 2966337 | 0.61 sq mi |
| Summer Set CDP | CDP | 2971508 | 0.91 sq mi |