Other pages about the topic: Age data

Population by age, mapped by county

Median Age, 2022

In 2010, the median age of persons living in Washington state was 37.3 years. In 2022 the median age had increased to 38.6 years.

Jefferson County had the highest median age in 2010 at 53.9 years. By 2022, the median age in Jefferson County had reached 60.7 years.

Estimates of April 1 population by age, sex, race and Hispanic origin

The standards for data collection and reporting on race and ethnicity have changed

The Federal Office of Management and Budget has issued new standards for the reporting of federal race and ethnicity data through Statistical Policy Directive 15 (SPD15). See Race and Ethnicity Information page for more information.