Other pages about the topic: Washington trends
Percent in households where English is spoken less than "very well"
Population Age 5 and Above, 2016
The smallest share of population where English was spoken less than "Very Well" was in Asotin and Lincoln counties. The highest share was in Adams County where 28.6 percent of persons were in this category.
return to top
Percent high school graduates
Population Age 25 and Above, 2016
Garfield (96.4 percent), Whitman (95.8 percent) and San Juan (95.3 percent) Counties had the highest percentages of high school graduates.
Adams (66.1 percent), Yakima (72.5 percent) and Franklin (73.6 percent) County had the lowest percentages of high school graduates.
Population Change, 2000–2010
Washington state population by race
Median Age, 2010
In 2010, the median age of persons living in Washington state was 37.3 years. In 2017 the median age had increased to 38.2 years.
Jefferson County had the highest median age in 2010 at 53.9 years. By 2017, the median age in Jefferson County had reached 57.9 years.
In 2017, the highest percentages of Hispanic residents were found in central Washington with Adams (56.8 percent), Franklin (54.9 percent) and Yakima (49.9 percent) counties posting the highest shares.
Washington state population by age group
|Plus Net Migration