Seattle, WA Profile: Facts, Map & Data


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Seattle, Washington - Basic Facts

The City of Seattle is the largest city in Washington with a population of 670,511 as of July 1, 2016. Seattle ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Seattle is located at latitude 47.6205 and longitude -122.3509 in King County. The formal boundaries for the City of Seattle (see map below) encompass a land area of 83.84 sq. miles and a water area of 58.82 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 177 feet.

The City of Seattle (GNIS ID: 2411856) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Seattle is located within Seattle Division of King County.

Beneath the boundary map are tables with Seattle population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Seattle, WA Boundary Map

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Boundary Maps: Seattle Division | King County | Washington Counties

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Seattle, WA Data & Demographics (As of July 1, 2016)


Total Population 670,511
Population in Households 642,986
Population in Familes 379,357
Population in Group Qrtrs 27,525
Population Density1 7,998
Diversity Index2 60


Total Households 309,384
Average Household Size 2.08
Family Households 130,890
Average Family Size 3


Total Housing Units 334,451 (100%)
Owner Occupied HU 142,524 (42.6%)
Renter Occupied HU 166,860 (49.9%)
Vacant Housing Units 25,067 ( 7.5%)
Median Home Value $483,826
Average Home Value $572,552


Median Household Income $66,886
Average Household Income $98,460
Per Capita Income $46,230
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.56% 1.56%
Households 1.41% 1.56%
Families 1.17% 1.43%
Median Household Income   2.86%
Per Capita Income   1.72%
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.

Seattle, WA - Peer Comparisons by Rank and Percentile

The table below compares Seattle to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1 100th
Population Density1 # 1 100th
Diversity Index2 # 110 83rd
Median Household Income # 177 72nd
Per Capita Income # 45 93rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

Washington Research Tools

Washington Census Data Comparison Tool

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