Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in King County, WA was 1260271.00000 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 King County, WA reached a record high of 1308660.00000 in January of 2019 and a record low of 1244837.00000 in January of 2010. 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 King County, WA - last updated from the United States Federal Reserve on May of 2024.