Income Inequality in Trempealeau County, WI was 9.26697 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Trempealeau County, WI reached a record high of 10.49967 in January of 2014 and a record low of 9.26697 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Trempealeau County, WI - last updated from the United States Federal Reserve on May of 2024.