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 650,834 as of July 1, 2015. 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.

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, 2015.

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, 2015)

POPULATION

Total Population 650,834
Population in Households 623,312
Population in Familes 369,397
Population in Group Qrtrs 27,522
Population Density1 7,753
Diversity Index2 59
 

HOUSEHOLDS

Total Households 303,501
Average Household Size 2.05
Family Households 128,767
Average Family Size 3

HOUSING

Total Housing Units 327,851 (100%)
Owner Occupied HU 137,228 (41.9%)
Renter Occupied HU 166,273 (50.7%)
Vacant Housing Units 24,350 ( 7.4%)
Median Home Value $543,292
Average Home Value $610,150
 

INCOME

Median Household Income $61,721
Average Household Income $87,368
Per Capita Income $41,334
  (Compound Annual Growth Rates)

GROWTH RATES

2010-2015 2015-2020
Population 1.28% 1.51%
Households 1.31% 1.6%
Families 1.08% 1.47%
Median Household Income   3.71%
Per Capita Income   2.91%
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.

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Seattle, WA - Peer Comparisons by Rank and Percentile

The table below compares Seattle to the other 628 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2015 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 # 112 82nd
Median Household Income # 216 66th
Per Capita Income # 68 89th

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