White to Non-White Racial Dissimilarity (5-year estimate) Index for Benton County, WA was 28.99% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Benton County, WA reached a record high of 34.14 in January of 2019 and a record low of 28.99 in January of 2022. 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 Benton County, WA - last updated from the United States Federal Reserve on May of 2024.