| Zip Code | City | Population ↓ |
|---|---|---|
| 48446 | Lapeer | 30,693 |
| 48444 | Imlay City | 9,525 |
| 48455 | Metamora | 7,953 |
| 48461 | North Branch | 7,889 |
| 48421 | Columbiaville | 6,592 |
| 48003 | Almont | 5,860 |
| 48412 | Attica | 5,720 |
| 48428 | Dryden | 5,556 |
| 48464 | Otter Lake | 1,999 |
| 48760 | Silverwood | 1,342 |
| 48727 | Clifford | 984 |
| 48440 | Hadley | 114 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Lapeer County, Michigan (US Census).