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Zip Code 98010 — Black Diamond, WA

98010 is a ZIP Code associated with Black Diamond, WA, located within King. 98010 ranks #72 out of 86 ZIP codes in King County by population (and #274 out of 605 in WA). The area supports an estimated population of 6,857 residents across Data Pending housing units, with a population density of 178.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.311730, -122.003260)

Data MetricLocal Statistic
Postal / Zip Code98010
Primary CityBlack Diamond
State / ProvinceWA
CountyKing
Total Population6,857
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density178.1 people/sq mi
TimezoneAmerica/Los_Angeles

How 98010 Compares

MetricZIP 98010King CountyWA State Average
Population6,8572,298,714 (Total)7,816,021 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density178.1 /sq mi----
County Pop Rank#72 of 86----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98051Ravensdale5.6 mi3,442N/A
Zip 98092Auburn6.2 mi50,224N/A
Zip 98042Kent6.4 mi50,216N/A
Zip 98038Maple Valley7.7 mi37,324N/A
Zip 98025Hobart8.8 mi52N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →