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California County Map

The California county map clearly shows the political subdivisions of the state. The state of California is divided into 58 counties for efficient administration. The counties are governed by the respective county seats.
Description : Map locating all the 58 counties in California. Disclaimer
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California Counties


The California county map outlines the political subdivisions of the state.
There are 58 counties in California and each of them are distinctly marked in the map for a clear understanding of their locations within the state.

The nation’s heartthrob, California is the most populous and the third largest state by area in the United States. It is surrounded by Oregon on the North, Arizona on the southeast, Nevada on the East, and the Mexican state of Baja, California, on the South. California is divided into counties, and at present there are 58 counties. When the division of areas into counties started in 18 February 1850, there existed 27 counties. 20 counties were added within the year 1865, and by the turn of the century 10 more came into existence. Imperial County, which was the last addition to the list of counties in California, was established in 1907.

 

List California Counties and County Seats

 
County NameCounty SeatArea (sq. mi.)Established in YearFormed fromPopulation (Jul 1, 2013)
Alameda CountyOakland737.571853Contra Costa and Santa Clara1,578,891
Alpine CountyMarkleeville738.621,864Amador, El Dorado, Calaveras, Mono and Tuolumne1159
Amador CountyJackson592.971854Calaveras36,519
Butte CountyOroville1639.491850Original222,090
Calaveras CountySan Andreas1020.041850Original44515
Colusa CountyColusa1150.681850Original21,358
Contra Costa CountyMartinez719.951850Original1,094,205
Del Norte CountyCrescent City1007.811857Klamath27,873
El Dorado CountyPlacerville1710.851,850Original181,737
Fresno CountyFresno5962.731856Mariposa, Merced and Tulare955272
Glenn CountyWillows1314.791891Colusa27,940
Humboldt CountyEureka3572.491853Trinity134,493
Imperial CountyEl Centro4174.731907San Diego176,584
Inyo CountyIndependence10203.11,866Mono and Tulare18,467
Kern CountyBakersfield8140.961866Los Angeles and Tulare864124
Kings CountyHanford1390.991893Tulare150,960
Lake CountyLakeport1257.961861Napa63,860
Lassen CountySusanville4557.271864Plumas and Shasta, and now defunctLake County, Nevada32163
Los Angeles CountyLos Angeles4060.871850Original10017068
Madera CountyMadera2135.861893Mariposa152,389
Marin CountySan Rafael519.81850Original258365
Mariposa CountyMariposa1451.121850Original17,755
Mendocino CountyUkiah3508.971850Original87,192
Merced CountyMerced1928.691855Mariposa263,228
Modoc CountyAlturas3944.11874Siskiyou9,147
Mono CountyBridgeport3044.41861Calaveras, Fresno and Mariposa14,074
Monterey CountySalinas3321.951850Original428,826
Napa CountyNapa753.731850Original140,326
Nevada CountyNevada City957.611851Yuba98,200
Orange CountySanta Ana789.41889Los Angeles3,114,363
Placer CountyAuburn1404.371851Sutter and Yuba367,309
Plumas CountyQuincy2553.691854Butte18,859
Riverside CountyRiverside7207.371893San Bernardino and San Diego2,292,507
Sacramento CountySacramento965.651850Original1,462,131
San Benito CountyHollister1389.061874Monterey57,600
San Bernardino CountySan Bernardino20052.51853Los Angeles2,088,371
San Diego CountySan Diego4199.891850Original3,211,252
San Francisco CountySan Francisco46.691850Original837,442
San Joaquin CountyStockton1399.281850Original704,379
San Luis Obispo CountySan Luis Obispo3304.321850Original276,443
San Mateo CountyRedwood City449.071856San Francisco and Santa Cruz747,373
Santa Barbara CountySanta Barbara2737.011850Original435,697
Santa Clara CountySan Jose1290.691850Original1,862,041
Santa Cruz CountySanta Cruz445.241850Original269,419
Shasta CountyRedding3785.191850Original178,980
Sierra CountyDownieville953.381852Yuba3,047
Siskiyou CountyYreka6286.781852Shasta and Klamath43,799
Solano CountyFairfield829.191850Original424,788
Sonoma CountySanta Rosa1575.881850Original495,025
Stanislaus CountyModesto1493.791854Tuolumne525,491
Sutter CountyYuba City602.541850Original95,350
Tehama CountyRed Bluff2950.991856Butte, Colusa and Shasta63,057
Trinity CountyWeaverville3178.611850Original13,448
Tulare CountyVisalia4823.971852Mariposa454,143
Tuolumne CountySonora2235.411850Original53,874
Ventura CountyVentura1845.31872Santa Barbara839,620
Yolo CountyWoodland1013.271850Original204,593
Yuba CountyMarysville630.691850Original73,340


Last Updated Date: January 16, 2017



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