| Locality | Post Code |
|---|---|
| Alma, Marion | 62807 |
| Carrigan, Marion | 62875 |
| Cartter, Marion | 62853 |
| Central City, Marion | 62801 |
| Centralia, Marion | 62801 |
| Cravat, Marion | 62801 |
| Fairman, Marion | 62882 |
| Finney Heights, Marion | 62801 |
| Glen Ridge, Marion | 62882 |
| Haines, Marion | 62853 |
| Helm, Marion | 62849 |
| Iuka, Marion | 62849 |
| Junction City, Marion | 62882 |
| Kell, Marion | 62853 |
| Kinmundy, Marion | 62854 |
| Odin, Marion | 62870 |
| Omega, Marion | 62849 |
| Patoka, Marion | 62875 |
| Pope, Marion | 62875 |
| Raccoon, Marion | 62801 |
| Salem, Marion | 62881 |
| Sandoval, Marion | 62882 |
| Slap Out, Marion | 62849 |
| Suburban Heights, Marion | 62801 |
| Vernon, Marion | 62892 |
| Walnut Hill, Marion | 62893 |