White to Non-White Racial Dissimilarity (5-year estimate) Index for Herkimer County, NY was 25.64% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Herkimer County, NY reached a record high of 38.18 in January of 2018 and a record low of 22.23 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 Herkimer County, NY - last updated from the United States Federal Reserve on May of 2024.