Post Offices List in Cass County, Indiana:
| Galveston Post Office | 102 W Washington St, Galveston, IN 46932 |
| Lake Cicott Post Office | 8080 W Us Highway 24, Lake Cicott, IN 46942 |
| Logansport Post Office | 406 9th St, Logansport, IN 46947 |
| Lucerne Post Office | 1567 W Frushour St, Lucerne, IN 46950 |
| Royal Center Post Office | 117 S Chicago St, Royal Center, IN 46978 |
| Twelve Mile Post Office | 8051 E State Road 16, Twelve Mile, IN 46988 |
| Walton Post Office | 107 N Depot St, Walton, IN 46994 |