| Post Office | County | Closed * | Zip |
|---|---|---|---|
| Caledonia | Washington | 63631 | |
| Clark’s Fort | Lincoln | 1821 | |
| Clarksville | Pike | 63336 | |
| Cooper Court House | Cooper | 1825 | |
| Lincoln | Lincoln | 1819 | |
| Monroe | Lincoln | 1823 | |
| Portage des Sioux | Saint Charles | 1827 » | 63373 |
There are 7 post offices on this page. Closing dates with a » next to them were re-opened at some future time. Refer to the county lists for complete opening and closing information.