ZIP Code 98388

ZIP code 98388 is classified by USPS as a standard delivery area and covers roughly 22.9 square miles in Steilacoom, Pierce County, Washington. The area is home to 7,508 residents, producing a population density of 328 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 98388 against Washington and the nation.

On the economic side, the median household income for ZIP 98388 sits at $100,851 (11% above the Washington average), while per-capita income is $52,413. The poverty rate stands at 14.4% and the unemployment rate at 6.0%. On housing, the median home value is $655,000 (28% above the state average) with median rent at $1,818 per month, and 62.9% of occupied units are owner-occupied, a direct signal of whether 98388 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 45.8% of adults hold a bachelor's degree or higher, the median age is 40.7, and the average commute is 27 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Pierce County, so you can benchmark 98388 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 →