White to Non-White Racial Dissimilarity (5-year estimate) Index for Madison County, NE was 31.01% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Madison County, NE reached a record high of 40.80 in January of 2012 and a record low of 21.21 in January of 2017. 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 Madison County, NE - last updated from the United States Federal Reserve on May of 2024.