Black Diamond, WA ZIP code
The ZIP code for Black Diamond, Washington is 98010. It is in King County.
- Population in these ZIPs
- 6,857
- Avg. median income
- $142,000population-weighted
- Typical home value
- $753,300population-weighted
- Metro area
- Seattle-Tacoma-Bellevue, WA
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Black Diamond, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 98010 | 6,857 | $142,048 | $753,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Black Diamond
- Ravensdale 6 mi
- Maple Valley 7 mi
- Hobart 8 mi
- Auburn 10 mi
- Kent 11 mi
- Buckley 12 mi
- Pacific 12 mi
- Bonney Lake 12 mi
- Federal Way 13 mi
- South Prairie 13 mi
- Renton 14 mi
- Wilkeson 14 mi
Frequently asked questions
What is the ZIP code for Black Diamond, WA?
The ZIP code for Black Diamond, WA is 98010.
What county is Black Diamond, Washington in?
Black Diamond ZIP codes are in King County.