White to Non-White Racial Dissimilarity (5-year estimate) Index for Ottawa County, MI was 43.41% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Ottawa County, MI reached a record high of 47.89 in January of 2011 and a record low of 42.96 in January of 2009. 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 Ottawa County, MI - last updated from the United States Federal Reserve on May of 2024.