White to Non-White Racial Dissimilarity (5-year estimate) Index for Somervell County, TX was 8.14% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Somervell County, TX reached a record high of 32.90 in January of 2011 and a record low of 1.04 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 Somervell County, TX - last updated from the United States Federal Reserve on May of 2024.