| Washington County | Central Dispatch/911 | 37.95005 | -90.88347 | 22 |
| Washington County | Washington County Ambulance District | 37.95005 | -90.88347 | 22 |
| Washington County | Washington County Memorial Hospital (Potosi) | 37.92589 | -90.77264 | 1 |
| Washington County | Bunker | 37.4556 | -91.20958 | 1 |
| Washington County | Irondale | 37.83199 | -90.67818 | 1 |
| Washington County | Potosi | 37.93644 | -90.78791 | 2 |
| Washington County | Richwoods | 38.16033 | -90.82819 | 4 |
| Schools | Kingston School District K14 (Cadet) | 37.98755 | -90.68846 | 2 |
| Schools | Potosi School District R3 | 37.93644 | -90.78791 | 5 |
| Schools | Reorganized School District 7 (Richwoods) | 38.16033 | -90.82819 | 2 |
| Missouri State | Potosi Correctional Center | 37.93617 | -90.73931 | 1 |
| Amateur Radio | Amateur Radio | 37.95005 | -90.88347 | 22 |
