White to Non-White Racial Dissimilarity (5-year estimate) Index for Newport County, RI was 42.17% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Newport County, RI reached a record high of 47.43 in January of 2013 and a record low of 38.99 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 Newport County, RI - last updated from the United States Federal Reserve on May of 2024.