Napa Valley is most famous for its wine
The region north of the Golden Gate Bridge is known locally as the
North Bay. This area includes Marin County and continues north into Sonoma and Napa counties and east to Solano County. With some exceptions, this region is quite rich: Marin County is listed as the wealthiest in the nation.
The City and County of San Francisco is generally placed in a category by itself in terms of geography and culture. It is separated by water from the north, west and east, and by a county line from its neighbor cities to the South. San Francisco has been the cultural, financial and urban center of the region for a long time. For most of the Bay Area's history, it has also been the main population center. But because the size of the county is limited, the growth of the city was limited as well. As a result, other cities and counties have had more population growth.
The area between the South Bay and the City and County of San Francisco is the
San Francisco Peninsula, known locally as The Peninsula. This area includes many small cities and suburban communities in San Mateo County and the northwestern part of Santa Clara County, as well as several towns along the Pacific coast, such as Pacifica and
Half Moon Bay.
The eastern side of the bay, consisting of Alameda and Contra Costa counties, is known locally as the East Bay. The East Bay is split into two regions, the inner East Bay, which is on the coast of the Bay, and the outer East Bay, including the inland valleys separated from the inner East Bay by hills and mountains.
The communities along the southern edge of the Bay are known as the
South Bay, Santa Clara Valley, and Silicon Valley.
This region is home to a large number of major technology companies. Some tech companies in the South Bay are Intel, AMD,
Cisco Systems, Hewlett-Packard, Apple, Google, and Yahoo!, Microsoft and much much more.
The San Francisco Bay Area is one of the wealthiest regions in the United States.