Municipal
· Washington
Town of Black Diamond
Black Diamond is a city in King County, Washington, United States. The population was 4,697 at the 2020 census. In 2023, with a 40.6% growth rate, Black Diamond was the fastest growing small city in King County.
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Reference data (Census of Governments 2022)
- Census ID (PID6)
- 136111
- FIPS state
- 53
- FIPS county
- 033
- FIPS place
- 06330
- Census record name
- TOWN OF BLACK DIAMOND
- Mailing address
- PO BOX 599, BLACK DIAMOND 98010