Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Benton County, WA was 139935.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Benton County, WA reached a record high of 140108.00000 in January of 2021 and a record low of 125548.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Benton County, WA - last updated from the United States Federal Reserve on May of 2024.