| City | ZIP Code |
| ALLENTON | 48002 |
| ALMONT | 48003 |
| ATTICA | 48412 |
| BROWN CITY | 48416 |
| CAPAC | 48014 |
| CLIFFORD | 48727 |
| COLUMBIAVILLE | 48421 |
| DAVISON | 48423 |
| DRYDEN | 48428 |
| FOSTORIA | 48435 |
| GOODRICH | 48438 |
| HADLEY | 48440 |
| IMLAY CITY | 48444 |
| LAPEER | 48446 |
| MARLETTE | 48453 |
| MAYVILLE | 48744 |
| METAMORA | 48455 |
| NORTH BRANCH | 48461 |
| ORTONVILLE | 48462 |
| OTISVILLE | 48463 |
| OTTER LAKE | 48464 |
| OXFORD | 48371 |
| SILVERWOOD | 48760 |
| YALE | 48097 |