ZIP Code 98010

ZIP code 98010 is classified by USPS as a standard delivery area and covers roughly 39.0 square miles in Black Diamond, King County, Washington. The area is home to 5,025 residents, producing a population density of 129 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 98010 against Washington and the nation.

On the economic side, the median household income for ZIP 98010 sits at $142,048 (56% above the Washington average), while per-capita income is $66,955. The poverty rate stands at 2.3% and the unemployment rate at 1.2%. On housing, the median home value is $775,400 (52% above the state average) with median rent at $1,657 per month, and 85.7% of occupied units are owner-occupied, a direct signal of whether 98010 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 52.7% of adults hold a bachelor's degree or higher, the median age is 38.5, and the average commute is 37 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing King County, so you can benchmark 98010 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 →