Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area WA Demographic Data and Boundary Map


Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area Boundary Map

Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area Data & Demographics (As of July 1, 2016)


Total Population 3,726,343
Population in Households 3,657,382
Population in Familes 2,808,291
Population in Group Qrtrs 68,961
Population Density1 635
Diversity Index2 60


Total Households 1,454,625
Average Household Size 2.51
Family Households 901,565
Average Family Size 3


Total Housing Units 1,565,613 (100%)
Owner Occupied HU 876,664 (56.0%)
Renter Occupied HU 577,961 (36.9%)
Vacant Housing Units 110,988 ( 7.1%)
Median Home Value $367,440
Average Home Value $444,165


Median Household Income $70,781
Average Household Income $95,234
Per Capita Income $37,642
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.29% 1.4%
Households 1.11% 1.33%
Families 1.02% 1.28%
Median Household Income   2.52%
Per Capita Income   1.68%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.