Resident Population in Jackson County, WI was 20.85500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Jackson County, WI reached a record high of 21.09600 in January of 2020 and a record low of 15.32500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jackson County, WI - last updated from the United States Federal Reserve on May of 2024.