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History · Blackhawk

The history of Blackhawk

Blackhawk is an unincorporated planned community and census-designated place located in Contra Costa County, California, United States, east of Danville and Oakland. We’re gathering its old postcards, photos and papers from public archives right now.

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Blackhawk through the years

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Blackhawk

California · CA
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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/19 · 2025-01-01
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