Seattle demographics profile

Population density (sq mi)7,9789791
Median age35.837.637.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)45%56%55%
Speak English78%81%79%
Speak Spanish4%8%13%
Seattle, WA has a population of 668,849 and is the 20th largest city in the United States. The population density is 7,978 per sq mi which is 8152% higher than the Washington average and 8706% higher than the national average. The median age in Seattle is 36 which is approximately 5% lower than the Washington average of 38. In Seattle, 45% of the population over 15 years of age are married, 78% speak English and 4% speak Spanish. 37% of Seattle residents were born in Washington, 42% were born out of state, 2% were born outside of the United States and 18% were foreign born.

Did you know?

  • The population density in Seattle is 8152% higher than Washington.
  • The median age in Seattle is 5% lower than Washington.
  • In Seattle 69.17% of the population is Caucasian.
  • In Seattle 7.10% of the population is African American.
  • In Seattle 14.15% of the population is Asian.

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Seattle population breakdown by race

African American7.10%3.63%12.63%
American Indian0.61%1.33%0.82%
Native Hawaiian0.40%0.63%0.18%
Mixed race6.47%5.34%3.06%
Other race2.10%3.92%4.75%
In Seattle, 6.6% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Seattle age breakdown

Marital status

Age of children in married couples

Source: The Seattle, WA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).