White to Non-White Racial Dissimilarity (5-year estimate) Index for Montgomery County, NY was 50.97% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Montgomery County, NY reached a record high of 53.65 in January of 2013 and a record low of 44.84 in January of 2009. 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 Montgomery County, NY - last updated from the United States Federal Reserve on June of 2024.