White to Non-White Racial Dissimilarity (5-year estimate) Index for Otter Tail County, MN was 38.33% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Otter Tail County, MN reached a record high of 50.57 in January of 2009 and a record low of 37.06 in January of 2012. 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 Otter Tail County, MN - last updated from the United States Federal Reserve on May of 2024.