Founded in 1840, Kalkaska County is one of 83 counties in the state of Michigan. Historically, Kalkaska County was formed from part of Mackinac County which was named Wabassee County until 1843. The city of Kalkaska is the county seat. With FIPS code of 79, Kalkaska County has a population of 17,979 and area of 571 square miles (1,479 km2).
List of all cities in Kalkaska County, MI alphabetically
| City/Town | Postal Code | Area Code |
| Fife Lake, MI | 49633 | 231 |
| Kalkaska, MI | 49646 | 231 |
| Rapid City, MI | 49676 | 231 |
| South Boardman, MI | 49680 | 231 |