Kalkaska Township is a civil township of Kalkaska County in the U.S. state of Michigan. The population was 2,895 at the 2020 census. The township contains the village of Kalkaska, which serves as the county seat. The western half of the township was formerly a separate township, known as Wilson Township.

Kalkaska County is located in the U.S. state of Michigan. As of the 2020 census, its population was 17,939. The county seat is Kalkaska.