Other pages about the topic: Washington trends

Languages spoken at home (mapped by county)

Percent in households where English is spoken less than "very well"

Population Age 5 and Above, 2020

The smallest share of population where English was spoken less than "Very Well" was in Pend Oreille County at 0.2%. The highest share was in Adams County where 26.4% of persons were in this category.

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Educational attainment (mapped by county)

Percent high school graduates

Population Age 25 and Above, 2020

Jefferson (96.3%), San Juan (95.9%) and Island (95.6%) County had the highest percentages of high school graduates.

Adams (68.9%), Yakima (74.3%) and Franklin (76.7%) County had the lowest percentages of high school graduates.

Components of population change

2010–2022

  Population
2010 Population  6,724,540
Plus Births  1,041,094
Less Deaths    -671,075
Plus Net Migration     769,841

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.

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