| Jefferson County | JeffCo 911 / Sheriff | 38.28778 | -90.57404 | 19 |
| Jefferson County | Government | 38.28778 | -90.57404 | 19 |
| EMS Agencies and Hospitals | Joachim-Plattin Township Ambulance District (Crystal City) | 38.22117 | -90.37901 | 5 |
| EMS Agencies and Hospitals | North Jefferson County Ambulance District | 38.413 | -90.54 | 10.2 |
| EMS Agencies and Hospitals | Jefferson Regional Medical Center (Crystal City) | 38.19634 | -90.39323 | 0.17 |
| EMS Agencies and Hospitals | Mercy Hospital Jefferson (Festus) | 38.20894 | -90.35983 | 1 |
| Municipalities and Districts | Water Districts | 38.28778 | -90.57404 | 19 |
| Municipalities and Districts | Arnold | 38.43772 | -90.38006 | 2.31 |
| Municipalities and Districts | Byrnes Mill | 38.43783 | -90.58179 | 1 |
| Municipalities and Districts | Cedar Hill | 38.35339 | -90.64124 | 3 |
| Municipalities and Districts | Crystal City | 38.22117 | -90.37901 | 1 |
| Municipalities and Districts | De Soto | 38.1395 | -90.55513 | 3 |
| Municipalities and Districts | Eureka | 38.50255 | -90.6279 | 1.25 |
| Municipalities and Districts | Festus | 38.22061 | -90.39595 | 1 |
| Municipalities and Districts | Herculaneum | 38.26839 | -90.38012 | 1 |
| Municipalities and Districts | High Ridge | 38.45894 | -90.53651 | 1 |
| Municipalities and Districts | Hillsboro | 38.23036 | -90.56408 | 0.9 |
| Municipalities and Districts | Pevely | 38.28339 | -90.39512 | 1.25 |
| Schools and Colleges | Laidlaw Transit | 38.28778 | -90.57404 | 19 |
| Schools and Colleges | De Soto Schools | 38.1395 | -90.55513 | 6 |
| Schools and Colleges | Dunklin School District R5 | 38.27342 | -90.38508 | 5 |
| Schools and Colleges | Festus Schools | 38.22061 | -90.39595 | 5 |
| Schools and Colleges | Fox C6 School District | 38.404 | -90.417 | 5.98 |
| Schools and Colleges | Grandview Public School R2 (Ware) | 38.21366 | -90.66263 | 5 |
| Schools and Colleges | Hillsboro Public School District R3 | 38.23228 | -90.5629 | 3 |
| Schools and Colleges | Northwest R 1 School District (High Ridge) | 38.44 | -90.564 | 5.74 |
| Schools and Colleges | Windsor C1 School District (Imperial) | 38.36978 | -90.37845 | 3 |
| Schools and Colleges | Jefferson College (Hillsboro) | 38.25839 | -90.55431 | 1 |
| Amateur Radio | Miscellaneous | 38.28778 | -90.57404 | 19 |
