White to Non-White Racial Dissimilarity (5-year estimate) Index for Sussex County, NJ was 22.65% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Sussex County, NJ reached a record high of 27.38 in January of 2009 and a record low of 21.98 in January of 2015. 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 Sussex County, NJ - last updated from the United States Federal Reserve on May of 2024.