White to Non-White Racial Dissimilarity (5-year estimate) Index for Somerset County, PA was 50.16% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Somerset County, PA reached a record high of 60.01 in January of 2015 and a record low of 50.16 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 Somerset County, PA - last updated from the United States Federal Reserve on May of 2024.