Income Inequality in St. Croix County, WI was 9.47700 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in St. Croix County, WI reached a record high of 10.27429 in January of 2013 and a record low of 9.17034 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in St. Croix County, WI - last updated from the United States Federal Reserve on May of 2024.