White to Non-White Racial Dissimilarity (5-year estimate) Index for Coal County, OK was 20.40% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Coal County, OK reached a record high of 23.93 in January of 2013 and a record low of 3.05 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 Coal County, OK - last updated from the United States Federal Reserve on May of 2024.