White to Non-White Racial Dissimilarity (5-year estimate) Index for Winona County, MN was 22.84% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Winona County, MN reached a record high of 24.94 in January of 2011 and a record low of 9.31 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for White to Non-White Racial Dissimilarity (5-year estimate) Index for Winona County, MN - last updated from the United States Federal Reserve on May of 2024.