White to Non-White Racial Dissimilarity (5-year estimate) Index for Effingham County, IL was 39.45% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Effingham County, IL reached a record high of 52.42 in January of 2019 and a record low of 19.09 in January of 2014. 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 Effingham County, IL - last updated from the United States Federal Reserve on May of 2024.