White to Non-White Racial Dissimilarity (5-year estimate) Index for Oldham County, KY was 24.42% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Oldham County, KY reached a record high of 34.11 in January of 2010 and a record low of 20.76 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 Oldham County, KY - last updated from the United States Federal Reserve on May of 2024.