Resident Population in Barron County, WI was 46.83300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Barron County, WI reached a record high of 46.84300 in January of 2022 and a record low of 33.95500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Barron County, WI - last updated from the United States Federal Reserve on May of 2024.