| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Athens, Branch | 49011 |
| Postal/ZIP Codes in Bronson, Branch | 49028 |
| Postal/ZIP Codes in Burr Oak, Branch | 49030 |
| Postal/ZIP Codes in Coldwater, Branch | 49036 |
| Postal/ZIP Codes in Montgomery, Branch | 49255 |
| Postal/ZIP Codes in Quincy, Branch | 49082 |
| Postal/ZIP Codes in Sherwood, Branch | 49089 |
| Postal/ZIP Codes in Tekonsha, Branch | 49092 |
| Postal/ZIP Codes in Union City, Branch | 49094 |