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California CountiesThe U.S. state of California is divided into fifty-eight counties. On January 4, 1850, the California constitutional committee recommended the formation of 18 counties. They were Benicia, Butte, Fremont, Los Angeles, Mariposa, Monterey, Mount Diablo, Oro, Redding, Sacramento, San Diego, San Francisco, San Joaquin, San Jose, San Luis Obispo, Santa Barbara, Sonoma, and Sutter. On April 22, the Counties of Branciforte, Calaveras, Coloma, Colusi, Marin, Mendocino, Napa, Trinity, and Yuba were added. Benicia was renamed Solano, Coloma to El Dorado, Fremont to Yola, Mt. Diablo to Contra Costa, San Jose to Santa Clara, Oro to Tuolumne, and Redding to Shasta. One of the first state legislative acts regarding Counties was to rename Branciforte County to Santa Cruz, Colusi to Colusa, and Yola to Yolo.
The last California county to have been established is Imperial County in 1907.
Contra Costa County, California
Contra Costa County History, Geography, Demographics, Cities and Towns, and Education
Etymology - Origin of County Name
The name signifies "opposite coast," because of its situation opposite San Francisco, in an easterly direction, on San Francisco Bay. In 1853, Alameda County was formed from territory originally included in this county.
County QuickFacts: Census Bureau Quick Facts
The County of Contra Costa, California (the "County") was incorporated in 1850 as one of the original 27 counties of the State of California (the "State"), with the City of Martinez as the County Seat. It is one of the nine counties in the San Francisco-Oakland Bay Area. The County is the ninth most populous county in California, with its population reaching approximately 1,051,677 as of January 1, 2008.
According to the U.S. Census Bureau, the county has a total area of 802 square miles (2,078 kmē), of
which, 720 square miles (1,865 kmē) of it is land and 82 square miles (213 kmē) of it (10.25%) is water.
Cities and Towns:
Enter County Resources and Information Here
The history of our nation was a prolonged struggle to define the relative roles and powers of our governments: federal, state, and local. And the names given the counties, our most locally based jurisdictions, reflects the "characteristic features of this country!"
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