White to Non-White Racial Dissimilarity (5-year estimate) Index for Chattahoochee County, GA was 18.73% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Chattahoochee County, GA reached a record high of 18.73 in January of 2022 and a record low of 4.10 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 Chattahoochee County, GA - last updated from the United States Federal Reserve on May of 2024.