White to Non-White Racial Dissimilarity (5-year estimate) Index for Iron County, UT was 34.00% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Iron County, UT reached a record high of 34.00 in January of 2022 and a record low of 14.06 in January of 2013. 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 Iron County, UT - last updated from the United States Federal Reserve on May of 2024.