| Locality | Post Code |
|---|---|
| Almont, Lapeer | 48003 |
| Attica, Lapeer | 48412 |
| Brown City, Lapeer | 48416 |
| Clifford, Lapeer | 48727 |
| Columbiaville, Lapeer | 48421 |
| Dryden, Lapeer | 48428 |
| Fostoria, Lapeer | 48435 |
| Goodrich, Lapeer | 48438 |
| Hadley, Lapeer | 48440 |
| Imlay, Lapeer | 48444 |
| Imlay City, Lapeer | 48444 |
| Lake Nepessing, Lapeer | 48446 |
| Lapeer, Lapeer | 48446 |
| Lum, Lapeer | 48412 |
| Mayville, Lapeer | 48744 |
| Metamora, Lapeer | 48455 |
| North Branch, Lapeer | 48461 |
| Otter Lake, Lapeer | 48464 |
| Silverwood, Lapeer | 48760 |