15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49423 | Holland | 46,693 |
| 49010 | Allegan | 18,394 |
| 49080 | Plainwell | 15,410 |
| 49348 | Wayland | 13,607 |
| 49323 | Dorr | 10,602 |
| 49408 | Fennville | 10,494 |
| 49078 | Otsego | 10,469 |
| 49419 | Hamilton | 8,730 |
| 49344 | Shelbyville | 4,139 |
| 49328 | Hopkins | 4,058 |
| 49450 | Pullman | 3,178 |
| 49453 | Saugatuck | 2,729 |
| 49070 | Martin | 2,192 |
| 49406 | Douglas | 922 |
| 49335 | Moline | 171 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Allegan County, Michigan (US Census).