White to Non-White Racial Dissimilarity (5-year estimate) Index for Cortland County, NY was 24.62% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Cortland County, NY reached a record high of 33.26 in January of 2009 and a record low of 18.05 in January of 2016. 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 Cortland County, NY - last updated from the United States Federal Reserve on May of 2024.