Steilacoom, WA
Census ZIP code profile for Steilacoom, WA — 1 ZIPs, total population 7,508. Median income, home value, education, commute, and demographics from the U.S. Census Bureau American Community Survey 2023 5-Year Estimates.
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Steilacoom, WA is covered by 1 USPS ZIP code serving a combined population of 7,508 according to Census ACS 5-Year Estimates. U.S. cities rarely map cleanly to a single ZIP — Steilacoom splits its residents across 1 delivery areas, each with its own demographic and housing profile. The table below lists every ZIP by population, so you can see which neighborhoods carry the weight of the city total and which are smaller pockets of the same municipal boundary.
Aggregated across every ZIP in Steilacoom, the median household income averages $100,851 and per-capita income averages $52,413. Poverty rate runs at 14.4% and unemployment at 6.0%. On housing, the average median home value is $655,000 with median rent of $1,818 per month, and 62.9% of occupied units are owner-occupied. These are arithmetic averages across the 1 ZIP — not population-weighted — so small ZIPs influence the headline numbers the same as large ones.
Use this city view to compare ZIPs inside Steilacoom against each other rather than hunting for a single "city average." The Affordability Dashboard linked below combines these Census inputs with HUD Fair Market Rents, FBI crime data, and Department of Labor childcare costs into a graded scorecard for Steilacoom as a whole, while individual ZIP pages show fine-grained household income, housing profile, education attainment, commute time, and nearby-ZIP benchmarks. Every field on this page is sourced directly from U.S. Census Bureau ACS 2023 5-Year Estimates — no estimates, no proprietary scoring, no editorial adjustment.
1
ZIP Codes
7,508
Population
$100,851
Median Income
$655,000
Median Home Value
40.7
Median Age
How much do residents of Steilacoom earn?
What does housing look like in Steilacoom?
Who lives in Steilacoom?
ZIP Codes in Steilacoom, WA
| ZIP Code | Population | Density | Timezone |
|---|---|---|---|
| 98388 | 7,508 | 328 | America/Los_Angeles |
Frequently Asked Questions
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Related Guides
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What median income hides and how to read the full picture
Official Data Resources for Steilacoom
Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →
Source: HUD USPS Crosswalk (ZIP-to-county mapping) and Source: simplemaps.com (ZIP coordinates & timezones). Verify with HUD →
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau American Community Survey (ACS). Consult a qualified professional before making decisions based on this data.
Read our methodology to see how this data is sourced, computed, and verified.