White to Non-White Racial Dissimilarity (5-year estimate) Index for Seneca County, OH was 34.72% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Seneca County, OH reached a record high of 42.24 in January of 2010 and a record low of 29.31 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 Seneca County, OH - last updated from the United States Federal Reserve on May of 2024.