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Black Diamond, Washington

Black Diamond, Washington
Top Works at Mine 11, Black Diamond, ca. 1915.
Top Works at Mine 11, Black Diamond, ca. 1915.
Location of Black Diamond, Washington
Location of Black Diamond, Washington
Coordinates: 47°18′31.36″N 122°00′11.41″W / 47.3087111°N 122.0031694°W / 47.3087111; -122.0031694
CountryUnited States
StateWashington
CountyKing
Establishedmid-1880s
IncorporatedFebruary 19, 1959
Government
 • TypeMayor–council
 • MayorCarol Benson
 • CouncilmembersNo. 1: Tamie Deady
No. 2: Brad Douglass
No. 3: Darcey Peterson
No. 4: Leih Mulvihill
No. 5: Kristiana de Leon
No. 6: Nathan Jones
No. 7: Debbie Page
Area
 • Total
7.19 sq mi (18.65 km2)
 • Land6.60 sq mi (17.09 km2)
 • Water0.60 sq mi (1.54 km2)
Elevation653 ft (199 m)
Population
 • Total
4,697
 • Estimate 
(2023)[5]
6,602
 • Density1,000.51/sq mi (386.29/km2)
Time zoneUTC–8 (Pacific (PST))
 • Summer (DST)UTC–7 (PDT)
ZIP Code
98010
Area code(s)360 and 564
FIPS code53-06330
GNIS feature ID1516603[3]
Websiteblackdiamondwa.gov

Black Diamond is a city in King County, Washington, United States. The population was 4,697 at the 2020 census.[4] In 2023, with a 40.6% growth rate,[5] Black Diamond was the fastest growing small city in King County.[6]

  1. ^ "Mayor & Council". City of Black Diamond. Retrieved November 24, 2024.
  2. ^ "2024 U.S. Gazetteer Files". United States Census Bureau. Retrieved November 24, 2024.
  3. ^ a b U.S. Geological Survey Geographic Names Information System: Black Diamond, Washington
  4. ^ a b "Explore Census Data". United States Census Bureau. Retrieved November 24, 2024.
  5. ^ a b Cite error: The named reference USCensusEst2023 was invoked but never defined (see the help page).
  6. ^ "Seattle's population dropped, but another King County city saw fastest growth in WA". The Seattle Times. May 26, 2022. Archived from the original on June 28, 2022. Retrieved June 29, 2022.

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