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Alameda County is a county in the state of California. Based on the 2010 census, the population was 1,510,271, making it the 7th-most populous county in the state. Its county seat is Oakland. Alameda County was formed on March 25, 1853. The county name is derived from the Spanish name for the cottonwood or poplar tree alamo, and means a grove of poplar trees.
The word Alameda is derived from alamo the Spanish name for cottonwood or poplar tree, and means a "grove of poplar trees." The name was applied both to the southern portion of the county (La Alameda) and to the stream running through it (Rio de la Alameda) as early as 1795.
County QuickFacts: CensusBureau Quick Facts
Alameda County was organized in 1853, under act of March 25, that year, by being set off from Contra Costa, of which it had previously formed a part. Alvarado became the first seat of government, as it was the most central among the available settlements, and with a good shipping place, to which Mission San Jose and other points were tributary. But political influence gained the privilege soon afterward for San Leandro, a town with similar advantages but more attractive in site and appearance, which had to surrender it twenty years later to its more powerful neighbor, Oakland. The change to San Leandro was made by popular vote in the latter part of 1854, and the erection of county buildings immediately begun. These were completed in 1855 at a cost of about $1,200. Alvarado did not submit quietly to being deprived of its honors, and litigation was the result, and for a little while the county seat was ambulatory between the two points, being fixed in San Leandro only in 1856. In this and the following year new county buildings were erected, at a cost of $30,000. The erection of a county hospital at San Leandro was begun in 1869 and completed in 1870, but, proving unsatisfactory, another building was erected later which, with additions, will accommodate about 200 patients. In 1873 the county-seat was removed to Oakland, by popular vote, and the construction of a court house and jail, and building for hall of records, county clerk and treasurer's offices, on opposite sides of Broadway, was undertaken, at a cost of about $200,000.
As reported by the Census Bureau, the county has a total
area of 821 square miles (2,127 km2), of which, 738 square miles
(1,910 km2) of it is land and 84 square miles (216 km2) of it
(10.18%) is water.
The San Francisco Bay borders the county on the west. The crest of the Berkeley Hills form part of the northeastern boundary, and reach into the center of the county. A coastal plain several miles wide lines the bay; it is home to Oakland and the most populous regions. Livermore Valley lies in the eastern part of the county.
The Hayward Fault, a major branch of the San Andreas Fault to the west, runs through the most populated parts of Alameda County, while the Calaveras Fault runs through the southeastern part of the county.
Bordering counties are as follows:
The Alameda County Office of Education oversees seventeen K-12 school districts and one K-8 district in Alameda County. In all, there
are approximately 10,000 teachers serving 225,000 students. The ACOE also services three community college districts with a total
enrollment of approximately 55,000 students.
The Alameda County Library operates libraries in the cities of Albany, Dublin, Fremont, Newark and Union City and the unincorporated communities of Castro Valley and San Lorenzo. The cities of Alameda, Berkeley, Hayward, Livermore, Oakland, San Leandro, and Pleasanton have their own library systems.
Alameda County is home to the University of California, Berkeley, the flagship campus of the University of California system, and one
of the largest and most prestigious research universities in the world.
Other colleges and universities located within Alameda county include: