White to Non-White Racial Dissimilarity (5-year estimate) Index for Mason County, KY was 25.40% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Mason County, KY reached a record high of 45.39 in January of 2014 and a record low of 25.40 in January of 2022. 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 Mason County, KY - last updated from the United States Federal Reserve on May of 2024.