White to Non-White Racial Dissimilarity (5-year estimate) Index for Irwin County, GA was 55.28% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Irwin County, GA reached a record high of 55.28 in January of 2022 and a record low of 26.59 in January of 2016. 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 Irwin County, GA - last updated from the United States Federal Reserve on May of 2024.