Estimated Percent of People of All Ages in Poverty for Whitman County, WA was 19.50% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People of All Ages in Poverty for Whitman County, WA reached a record high of 32.30 in January of 2012 and a record low of 14.10 in January of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of People of All Ages in Poverty for Whitman County, WA - last updated from the United States Federal Reserve on June of 2024.