White to Non-White Racial Dissimilarity (5-year estimate) Index for Bryan County, OK was 23.47% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Bryan County, OK reached a record high of 28.44 in January of 2014 and a record low of 14.25 in January of 2009. 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 Bryan County, OK - last updated from the United States Federal Reserve on May of 2024.