White to Non-White Racial Dissimilarity (5-year estimate) Index for Portage County, OH was 34.09% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Portage County, OH reached a record high of 42.63 in January of 2012 and a record low of 32.77 in January of 2021. 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 Portage County, OH - last updated from the United States Federal Reserve on May of 2024.