| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 46705 | Ashley | DeKalb County | Standard |
| 46706 | Auburn | DeKalb County | Standard |
| 46710 | Avilla | Noble County | Standard |
| 46721 | Butler | DeKalb County | Standard |
| 46730 | Corunna | DeKalb County | Standard |
| 46738 | Garrett | DeKalb County | Standard |
| 46742 | Hamilton | Steuben County | Standard |
| 46747 | Hudson | Steuben County | Standard |
| 46748 | Huntertown | Allen County | Standard |
| 46763 | Laotto | Noble County | Standard |
| 46785 | Saint Joe | DeKalb County | Standard |
| 46788 | Spencerville | Allen County | Standard |
| 46793 | Waterloo | DeKalb County | Standard |