| Mason County | Mason County | 43.99874 | -86.2278 | 20 |
| Mason County | Mason-Oceana 911/Central Dispatch Authority | 43.99874 | -86.2278 | 20 |
| Municipalities | Spectrum Health Ludington Hospital | 43.99874 | -86.2278 | 20 |
| Municipalities | Carr Fire Department (Branch) | 43.99874 | -86.2278 | 20 |
| Municipalities | Ludington | 43.954 | -86.359 | 6.43 |
| Municipalities | Pere Marquette Township | 43.917 | -86.418 | 3.57 |
| Schools | Mason Lake Intermediate School District (Scottville) | 43.95473 | -86.28008 | 2 |
| Colleges | West Shore Community College | 43.99874 | -86.2278 | 20 |
| Amateur Radio | ARES/RACES | 43.99874 | -86.2278 | 20 |
