Black Diamond, WA

View of Black Diamond, WA
Population
6,978
U.S. Census Population Estimates Program · 2025
Elevation
675 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$779,100
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,453/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$141,383
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About Black Diamond

Black Diamond started in the 1880s as a coal mining settlement, and you can still see that working-class heritage throughout town today. The original train depot is now a local history museum, and historic spots like the Black Diamond Bakery have been serving fresh bread and pastries for over a century. The mines closed long ago, but the city keeps a quiet, semi-rural character surrounded by tall evergreens, country roads, and clear views of Mount Rainier to the south.

Anyone considering a move here will notice three distinct pockets. Historic Old Town sits along State Route 169, lined with older homes and small local businesses. Northwest of town, the neighborhoods around Lake Sawyer offer a scenic lakeside setting with a mix of original cabins and updated waterfront properties. To the south, the newer Ten Trails development brings modern master-planned living, complete with neighborhood parks, playgrounds, and paved walking paths. Since large shopping centers have not arrived in town yet, most residents drive to nearby Maple Valley or Covington for major grocery runs and daily services.

Community life tends to revolve around the outdoors and neighborhood gatherings. Longtime residents gather downtown for the annual Labor Day parade and festival, while the lawns at Ten Trails host seasonal markets and outdoor movie nights at Civic Park. Lake Sawyer is a huge draw in the summer for boating, paddleboarding, and fishing, with a 140-acre regional park offering quiet hiking trails through the woods. It adds up to a relaxed suburban retreat where you get plenty of breathing room within driving distance of the greater Seattle job market.

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