White to Non-White Racial Dissimilarity (5-year estimate) Index for Duchesne County, UT was 28.84% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Duchesne County, UT reached a record high of 30.91 in January of 2021 and a record low of 15.61 in January of 2010. 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 Duchesne County, UT - last updated from the United States Federal Reserve on May of 2024.