Post Offices List in Dickinson County, Iowa:
| Arnolds Park Post Office | 50 N Highway 71, Arnolds Park, IA 51331 |
| Lake Park Post Office | 202 N Market St, Lake Park, IA 51347 |
| Milford Post Office | 900 N Ave, Milford, IA 51351 |
| Okoboji Post Office | 1009 Highway 71 S, Okoboji, IA 51355 |
| Spirit Lake Post Office | 1513 Hill Ave, Spirit Lake, IA 51360 |
| Superior Post Office | 110 7th St, Superior, IA 51363 |
| Terril Post Office | 109 S State St, Terril, IA 51364 |