Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Jefferson County, WI was 76161.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Jefferson County, WI reached a record high of 76161.00000 in January of 2022 and a record low of 73559.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Jefferson County, WI - last updated from the United States Federal Reserve on May of 2024.