Income Inequality in Whitman County, WA was 30.48291 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Whitman County, WA reached a record high of 30.48291 in January of 2022 and a record low of 22.07205 in January of 2017. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Whitman County, WA - last updated from the United States Federal Reserve on June of 2024.