White to Non-White Racial Dissimilarity (5-year estimate) Index for Norman County, MN was 20.82% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Norman County, MN reached a record high of 30.18 in January of 2009 and a record low of 12.33 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 Norman County, MN - last updated from the United States Federal Reserve on May of 2024.