Federal Way, WA Profile: Facts & Data


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Federal Way, Washington - Basic Facts

The City of Federal Way is the 10th largest city in Washington with a population of 98,575 as of July 1, 2018. Federal Way 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 Federal Way is located at latitude 47.3088 and longitude -122.3361 in King County. The formal boundaries for the City of Federal Way (see map below) encompass a land area of 22.26 sq. miles and a water area of 0.2 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 463 feet.

The City of Federal Way (GNIS ID: 2410494) 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 Federal Way is located within Federal Way-Auburn Division of King County.

Jump to... (On This Page!)
  1. Federal Way 2018 Demographic Data
  2. Growth Rates for Federal Way (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Washington Research Tools (Easy Tools & Current Data)
  3. Washington Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Federal Way, WA Data & Demographics (As of July 1, 2018)


Total Population 98,575
Population in Households 97,787
Population in Familes 79,468
Population in Group Qrtrs 788
Population Density2 4,427
Diversity Index3 78


Median Household Income $65,800
Average Household Income $84,473
Per Capita Income $31,103


Total Housing Units 37,998 (100%)
Owner Occupied HU 19,751 (52.0%)
Renter Occupied HU 16,182 (42.6%)
Vacant Housing Units 2,065 ( 5.4%)
Median Home Value $311,988
Average Home Value $360,693


Total Households 35,933
Average Household Size 2.72
Family Households 24,016
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2018 2018-2023
Population 1.2% 1.17%
Households 0.97% 0.99%
Families 1.05% 1.09%
Median Household Income   2.94%
Per Capita Income   2.61%

Federal Way, WA - Peer Comparisons by Rank and Percentile

The table below compares Federal Way to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2018 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 # 10 99th
Population Density # 27 96th
Diversity Index # 37 94th
Median Household Income # 244 61st
Per Capita Income # 287 54th

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

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Compare Washington July 1, 2018 Data
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