4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49646 | Kalkaska | 8,561 |
| 49676 | Rapid City | 3,459 |
| 49633 | Fife Lake | 3,208 |
| 49680 | South Boardman | 2,170 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Kalkaska County, Michigan (US Census).