ZIP Code 98538

ZIP code 98538 is classified by USPS as a standard delivery area and covers roughly 276.4 square miles in Curtis, Lewis County, Washington. The area is home to 304 residents, producing a population density of 1 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 98538 against Washington and the nation.

On the economic side, the median household income for ZIP 98538 sits at $105,000 (16% above the Washington average), while per-capita income is $56,343. The poverty rate stands at 10.2% and the unemployment rate at 2.3%. On housing, the median home value is $482,100 (6% below the state average) with median rent at — per month, and 84.9% of occupied units are owner-occupied, a direct signal of whether 98538 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 9.0% of adults hold a bachelor's degree or higher, the median age is 41.2, and the average commute is 22 minutes. We also surface 2 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lewis County, so you can benchmark 98538 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 →