Zip Code 98023 — Federal Way, WA

ZIP Code 98023 is associated with Federal Way, WA, in King County. The listed population estimate is 50,448; estimated density is 1,897.5 people per square mile. Among records with population estimates, it ranks #8 of 83 in King County and #20 of 597 in WA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (47.308810, -122.361980)

Data MetricLocal Statistic
Postal / Zip Code98023
Primary CityFederal Way
State / ProvinceWA
CountyKing
Total Population50,448
Population Density1,897.5 people/sq mi
TimezoneAmerica/Los_Angeles

How 98023 Compares

MetricZIP 98023King County recordsWA records
Population estimate50,4482,298,714 (sum)7,816,021 (sum)
Population Density1,897.5 /sq mi----
County population rank#8 of 83----
State population rank#20 of 597----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in WA

ZIP CodeCityDistancePopulation estimate
ZIP 98422Tacoma1.9 mi21,644
ZIP 98003Federal Way2.2 mi51,619
ZIP 98421Tacoma3.9 mi424
ZIP 98354Milton4.5 mi8,597
ZIP 98001Auburn4.6 mi37,460

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →