Post Offices List in DeKalb County, Indiana:
| Ashley Post Office | 114 W State St, Ashley, IN 46705 |
| Auburn Post Office | 201 S Jackson St, Auburn, IN 46706 |
| Butler Post Office | 119 N Broadway St, Butler, IN 46721 |
| Corunna Post Office | 104 N Bridge St, Corunna, IN 46730 |
| Garrett Post Office | 115 W Keyser St, Garrett, IN 46738 |
| Saint Joe Post Office | 104 Third St, Saint Joe, IN 46785 |
| Waterloo Post Office | 180 W Marion St, Waterloo, IN 46793 |