ZIP Code 98023

ZIP code 98023 is classified by USPS as a standard delivery area and covers roughly 26.8 square miles in Federal Way, King County, Washington. The area is home to 47,510 residents, producing a population density of 1,775 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 98023 against Washington and the nation.

On the economic side, the median household income for ZIP 98023 sits at $104,893 (15% above the Washington average), while per-capita income is $46,636. The poverty rate stands at 9.0% and the unemployment rate at 3.8%. On housing, the median home value is $589,900 (15% above the state average) with median rent at $1,900 per month, and 65.6% of occupied units are owner-occupied, a direct signal of whether 98023 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 33.9% of adults hold a bachelor's degree or higher, the median age is 38.6, and the average commute is 33 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing King County, so you can benchmark 98023 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →