Zip Code 98003
Federal Way, Washington — King County
📍 ZIP code 98003 is in Federal Way, King County, Washington.
ZIP code 98003 is located in Federal Way, King County, Washington. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 52,210. The area code for ZIP code 98003 is 206.
Quick Answer
Zip code 98003 is in Federal Way, Washington (King County). It has a population of 52,210, median household income of $70,800, and median home value of $428,500.
Population
52,210
Income
$70,800
Home Value
$428,500
Climate
77°F / 37°F
About Zip Code 98003
Zip code 98003 is located in Federal Way, Washington, within King County. Home to approximately 52,210 residents, this area sits at an elevation of 381 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 206.
The median household income is $70,800 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $428,500, and the cost of living index is 122 (22% above the national average of 100).
Summers average a high of 77°F while winters drop to 37°F. The area receives about 41 in of rain and 4 in of snow annually. The zip code covers 11.6 square miles of land area and 0.1 square miles of water.
Key Statistics
52,210
$70,800
$428,500
Pacific (PST/PDT)
206
381 ft
11.6 sq mi
36.4
20,380
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Compare With Nearby Zip Codes
| Metric | 98003 | 98023 | 98001 | 98422 | 98354 | 98047 |
|---|---|---|---|---|---|---|
| City | Federal Way, WA | Federal Way, WA | Auburn, WA | Fife, WA | Milton, WA | Auburn, WA |
| Population | 52,210 | 49,593 | 36,041 | 22,126 | 8,432 | 6,900 |
| Median Income | $70,800 | $101,960 | $107,218 | $115,989 | $90,361 | $102,723 |
| Home Value | $428,500 | $545,600 | $538,800 | $614,300 | $510,900 | $431,300 |
| Cost of Living | 122 | 155 | 159 | 182 | 143 | 131 |
| Median Age | 36.4 | 38.9 | 39.9 | 39 | 38 | 36.6 |
Cost of Living
100 = National Average. Federal Way's cost of living is 22% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
6.1x
Demographics
Zip code 98003 has a population of 52,210 people with a median age of 36.4. There are 20,380 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Federal Way (98003) population trend from 2010 to 2024
↑ 48.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
77°F
37°F
41 in
4 in
Federal Way experiences mild summers with average highs around 77°F. Winters are mild with lows averaging 37°F. The area receives about 4 in of snow per year.
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Housing & Economy
Median Home Value
$428,500
Median Household Income
$70,800
With 20,380 housing units across 11.6 square miles, 98003 has a housing density of 1,757 units per square mile. The home price-to-income ratio is 6.1x.
Location & Geography
Latitude
47.3053°
Longitude
-122.3169°
Land Area
11.6 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 98003 (Federal Way, WA) with distances:
All Zip Codes in Federal Way, WA
Other zip codes serving Federal Way:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 98003's $70,800. A way to compare Federal Way to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 98003 (Federal Way, WA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Federal Way, Washington?
Federal Way, Washington uses zip code 98003 along with 1 other zip codes.
What county is zip code 98003 in?
Zip code 98003 is located in King County, Washington.
What is the population of zip code 98003?
The population of zip code 98003 is 52,210 with a median age of 36.4.
Is 98003 in Federal Way, Washington?
Yes, zip code 98003 is in Federal Way, King County, Washington. The area code is 206.
Frequently Asked Questions
What city is zip code 98003 in?
Zip code 98003 is in Federal Way, Washington. It is part of King County and uses the Pacific (PST/PDT) timezone.
What is zip code 98003?
Zip code 98003 is a U.S. postal code in Federal Way, Washington (King County). It has a population of 52,210 and covers 11.6 square miles.
What is the population of zip code 98003?
The population of zip code 98003 (Federal Way, WA) is 52,210 with a median age of 36.4. There are approximately 20,380 housing units in this area.
What is the median income in zip code 98003?
The median household income in zip code 98003 (Federal Way, WA) is $70,800 per year. The cost of living index is 122 (100 = national average).
What is the average home price in zip code 98003?
The median home value in zip code 98003 (Federal Way, WA) is $428,500. The cost of living index is 122 compared to the national average of 100.
What county is zip code 98003 in?
Zip code 98003 is located in King County, Washington. The primary city is Federal Way.
What is the area code for zip code 98003?
Zip code 98003 in Federal Way, WA uses area code 206. It is located in the Pacific (PST/PDT) timezone.
Is zip code 98003 a good place to live?
Zip code 98003 (Federal Way, WA) has a cost of living index of 122 (100 = national average), a median household income of $70,800, and median home values of $428,500. The median age is 36.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 98003?
The cost of living index for zip code 98003 (Federal Way, WA) is 122, where 100 represents the national average. This area is above the national average. Median home value: $428,500.
What schools serve zip code 98003?
Zip code 98003 in Federal Way, Washington is served by the local school district of King County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.