Income Inequality in Benton County, WA was 11.81722 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Benton County, WA reached a record high of 12.60998 in January of 2017 and a record low of 11.11729 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Benton County, WA - last updated from the United States Federal Reserve on May of 2024.