Resident Population in Barry County, MI was 63.80800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Barry County, MI reached a record high of 63.80800 in January of 2023 and a record low of 38.16600 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Barry County, MI - last updated from the United States Federal Reserve on May of 2024.