Resident Population in Kalkaska County, MI was 18.49000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Kalkaska County, MI reached a record high of 18.49000 in January of 2023 and a record low of 5.37200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Kalkaska County, MI - last updated from the United States Federal Reserve on May of 2024.