White to Non-White Racial Dissimilarity (5-year estimate) Index for Marion County, OH was 48.51% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Marion County, OH reached a record high of 57.40 in January of 2013 and a record low of 39.23 in January of 2018. 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 Marion County, OH - last updated from the United States Federal Reserve on May of 2024.