Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Clark County, WA was 379970.00000 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 Clark County, WA reached a record high of 379970.00000 in January of 2022 and a record low of 343071.00000 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 Clark County, WA - last updated from the United States Federal Reserve on May of 2024.