Resident Population in Columbia County, WI was 58.09100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Columbia County, WI reached a record high of 58.51600 in January of 2020 and a record low of 40.15000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Columbia County, WI - last updated from the United States Federal Reserve on May of 2024.