San Francisco Bay Area - Wikipedia
https://en.wikipedia.org/wiki/San_Francisco_Bay_Area
WebThe San Francisco Bay Area, commonly known as the Bay Area, is a region of California. The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuaries of San Francisco , San Pablo , and Suisun : Alameda , Contra Costa , Marin , Napa , San Mateo , Santa Clara , Solano , Sonoma , and San ...
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