White to Non-White Racial Dissimilarity (5-year estimate) Index for Mercer County, KY was 34.55% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Mercer County, KY reached a record high of 50.22 in January of 2012 and a record low of 15.26 in January of 2019. 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 Mercer County, KY - last updated from the United States Federal Reserve on May of 2024.