White to Non-White Racial Dissimilarity (5-year estimate) Index for Grant County, WI was 31.69% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Grant County, WI reached a record high of 33.95 in January of 2012 and a record low of 21.45 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 Grant County, WI - last updated from the United States Federal Reserve on May of 2024.