The

San Francisco Bay Area The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Go ...

, commonly known as the Bay Area, is a metropolitan region surrounding the

San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from a ...

estuaries An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

Northern California Northern California (colloquially known as NorCal) is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California. Spanning the state's northernmost 48 counties, its main population centers incl ...

. According to the

2010 United States Census The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators servin ...

, the region has over 7.1 million inhabitants and approximately of land. The region is home to three major cities:

San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...

Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...

and, the largest, San Jose. The Bay Area has been inhabited since antiquity, first by the

Ohlone The Ohlone, formerly known as Costanoans (from Spanish meaning 'coast dweller'), are a Native American people of the Northern California coast. When Spanish explorers and missionaries arrived in the late 18th century, the Ohlone inhabited the ...

and

Miwok The Miwok (also spelled Miwuk, Mi-Wuk, or Me-Wuk) are members of four linguistically related Native American groups indigenous to what is now Northern California, who traditionally spoke one of the Miwok languages in the Utian family. The word ' ...

peoples, followed by the

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...

, who first arrived in 1769 and established the area's first

mission Mission (from Latin ''missio'' "the act of sending out") may refer to: Organised activities Religion *Christian mission, an organized effort to spread Christianity *Mission (LDS Church), an administrative area of The Church of Jesus Christ of ...

Mission San Francisco de Asís Mission San Francisco de Asís ( es, Misión San Francisco de Asís), commonly known as Mission Dolores (as it was founded near the Dolores creek), is a Spanish Californian mission and the oldest surviving structure in San Francisco. Located i ...

, in 1776. After being

ceded The act of cession is the assignment of property to another entity. In international law it commonly refers to land transferred by treaty. Ballentine's Law Dictionary defines cession as "a surrender; a giving up; a relinquishment of jurisdictio ...

to the United States in 1848, the Bay Area grew immensely due to the

California Gold Rush The California Gold Rush (1848–1855) was a gold rush that began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California fro ...

, establishing itself as one of the most important regions on the

West Coast West Coast or west coast may refer to: Geography Australia * Western Australia *Regions of South Australia#Weather forecasting, West Coast of South Australia * West Coast, Tasmania **West Coast Range, mountain range in the region Canada * Britis ...

. Today, the Bay Area is the home of

Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...

Wine Country Wine Country is the region of California, in the northern San Francisco Bay Area, known worldwide as a premier wine-growing region. The region is famed for its wineries, its cuisine, Michelin star restaurants, boutique hotels, luxury resorts, ...

, and numerous companies, universities, bridges, airports, and parks. The Bay Area consists of nine counties (

Alameda An alameda is a Avenue (landscape), street or path lined with trees () and may refer to: Places Canada *Alameda, Saskatchewan, town in Saskatchewan **Grant Devine Dam, formerly ''Alameda Dam'', a dam and reservoir in southern Saskatchewan Chile ...

, Contra Costa,

Marin Marin (French) or Marín (Spanish "sailor") may refer to: People * Marin (name), including a list of persons with the given name or surname * MaRin, in-game name of professional South Korean ''League of Legends'' player Jang Gyeong-hwan (born 19 ...

, Napa,

, San Mateo, Santa Clara, Solano, and Sonoma) and 101 municipalities. One, San Francisco, is a

consolidated city–county In United States local government, a consolidated city-county is formed when one or more cities and their surrounding county ( parish in Louisiana, borough in Alaska) merge into one unified jurisdiction. As such it has the governmental powers o ...

. California law makes no distinction between "city" and "town", and municipalities may use either term in their official names.California Government Code Sections 34502 and 56722. The first municipalities to incorporate were Benicia and San Jose on March 27, 1850, while the most recent was Oakley on July 1, 1999. The largest municipality by population and land area is San Jose with 1,013,240 residents and . The smallest by population is Colma with 1,507 people, while the smallest by land area is

Belvedere Belvedere (from Italian, meaning "beautiful sight") may refer to: Places Australia *Belvedere, Queensland, a locality in the Cassowary Coast Region Africa * Belvedere (Casablanca), a neighborhood in Casablanca, Morocco *Belvedere, Harare, Zi ...

at .

Old Courthouse Square, Downtown Santa Rosa (Smaller Version)

Todos Santos Plaza (Concord, California) Dec 2009

References

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Cities A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...

See also

References