Black Diamond is a historic, rapidly growing city in south King County. Once a quiet coal-mining town, it is transforming into a highly sought-after, upscale suburb that blends modern master-planned neighborhoods with vast outdoor recreation.

History
Coal Roots: Founded in the 1880s as a major coal-mining hub.

Historic Landmark: Home to the famous Black Diamond Bakery, which has been operating since 1902.

Demographics
Population: ~6,800 (one of King County’s fastest-growing small cities).

Household Income: Highly affluent, with a median income of $141,383.

Diversity: Mostly White (67%), with a rapidly expanding Asian community (18%), followed by Hispanic/Latino (8%) and multi-racial (6%) residents.

Housing Market
The “Ten Trails” Boom: The market is dominated by the massive Ten Trails master-planned development, which is introducing thousands of modern, high-tech single-family homes and townhomes.

Median Price: Ranges from $700,000 to $850,000, with upscale new builds frequently clearing $1 million.

Schools
Split Districts: Students attend either the top-tier Tahoma School District (shared with Maple Valley) or the highly regarded Enumclaw School District, depending on the neighborhood.

Recreation
Mountain Biking: The Black Diamond Open Space (BDOS) is a massive regional hotspot featuring miles of progressive single-track bike trails.

Rivers & Parks: Steps away from the Green River Gorge and Flaming Geyser State Park, offering excellent hiking, summer tubing, and rafting.