San Francisco–Oakland–Fremont, CA Metropolitan Statistical Area
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San Francisco–Oakland–Fremont, CA MSA is a Metropolitan Statistical Area (MSA) within the San Francisco Bay Area, which includes a number of its core cities and counties. It is defined by the US Census Bureau to include core areas more directly economically influenced by San Francisco rather than outlying cities such as San Jose which has its own MSA, the San Jose–Sunnyvale–Santa Clara, CA MSA. The Federal Government definition states that it consists of 5 counties, grouped into two divisions. Those 5 counties are San Francisco, Alameda, Marin, Contra Costa, and San Mateo County. It is a subset of the 9 county San Francisco Bay Area, as well as the 12 county Combined Statistical Area, the San Francisco Bay Area Combined Statistical Area (also known as the San Jose–San Francisco–Oakland, CA CSA). Portions of the North Bay are not in the area, but are instead part of the Santa Rosa–Petaluma, CA MSA.
This region had a population of 4,335,391 during the 2010 census, a land area of 2,470.5 square miles, giving an average population density of 1,754.8 people per square mile.
The GDP of the region was $347.1 billion in 2011 (nominal), the first significant increase from 2007 value of $320.6 billion, showing the effects of the Financial crisis of 2007–08. The GDP per capita was $69,089 in 2011, down from $71,076 in 2007, but still over triple that of Riverside-San Bernardino MSA in the southern part of the state. Adjacent San Jose–Sunnyvale–Santa Clara, CA MSA posted the highest per capita figures statewide.
There is a vast geographic diversity within this MSA. The region is composed of at least six terrains (continental, seabed, or island arc fragments with distinct characteristics) pushed together over millions of years by the forces of plate tectonics. There are several fault lines running under the Bay Area, such as the San Andreas, Calaveras, and Hayward Faults. There are two distinct regions of the San Francisco–Oakland–Fremont, CA MSA which are separated by the San Francisco Bay. These landscapes range from cool foggy mountains and temperate rainforest on the Peninsula and Marin, to semi-arid, near desert terrain in the easternmost portions of the East Bay.
Bay Area Rapid Transit serves all the counties except Marin. Golden Gate Transit serves Marin, with limited connections to San Francisco and Contra Costa, along with service to outlying Sonoma County. AC Transit serves Alameda and Contra Costa, with connections to San Francisco's transit hub. Commercial air travel is available via San Francisco International Airport, and Oakland International Airport.
In addition to the city and county governments, there are a number of area-wide governmental bodies. Park organizations in the area include the East Bay Regional Parks District and the Golden Gate National Recreation Area. East Bay Municipal Utility District provides water and sewer services to much of the East Bay, with the Marin Municipal Water District providing for parts of Marin County. The Association of Bay Area Governments provides for regional planning. The Bay Area Metropolitan Transportation Commission coordinates transportation projects. The Bay Area Air Quality Management District monitors air quality.
Kaiser Permanente is a healthcare organization which began in the Bay Area, and has numerous medical centers in the area.