White to Non-White Racial Dissimilarity (5-year estimate) Index for Skamania County, WA was 24.72% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Skamania County, WA reached a record high of 38.46 in January of 2014 and a record low of 15.05 in January of 2011. 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 Skamania County, WA - last updated from the United States Federal Reserve on May of 2024.