White to Non-White Racial Dissimilarity (5-year estimate) Index for Thomas County, GA was 33.19% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Thomas County, GA reached a record high of 36.66 in January of 2012 and a record low of 29.08 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 Thomas County, GA - last updated from the United States Federal Reserve on June of 2024.