List of counties in California

IM
SD
RV
OR
SB
LA
KE
VE
BR
LO
MT
BN
FR
KG
TL
IN
MN
AL
TU
MR
MD
ME
SC
SZ
SM
SF
AM
CC
SJ
ST
CA
AD
ED
SA
SL
YO
NA
MA
SN
MC
LK
CO
SR
YU
PL
NV
SE
BU
GL
TE
PM
LS
MO
SH
SK
TR
HU
DN

The U.S. state of California is divided into 58 counties. Counties are responsible for all elections, property-tax collection, maintenance of public records such as deeds, and local-level courts within their borders, as well as providing law enforcement (through the county sheriff and sheriff's deputies) to areas that do not lie within incorporated cities.

Contents

First establishment of California counties

County FIPS code of California

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 Yolo, 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.

Table of California counties

The current number of counties was achieved over time by subdivision of many of the larger counties into smaller ones. The links in the column FIPS County Code are to the Census Bureau Info page for that county. The map at the right hand side also shows the FIPS codes for all the counties (on one map for easy reference).

Population Note: County and city populations are counted by two agencies, one the California Department of Finance (CDF) January 2008 data , and also US Census Bureau July 2008 data, using different counting methodology. California claims US Census consistently underreports due to difficulty in tracking immigrants, population data is used to calculate distribution of money for federal programs.

California's postal abbreviation is CA and its FIPS state code is 06.

County
FIPS code
[2]
County seat
[3]
Established
[3]
Created from parts of
Etymology
[4]
Population (CDF 1-08)
[5]
Population
Area
[3]
Map
Alameda County 001 Oakland 1853 Contra Costa and Santa Clara Alameda is Spanish for an avenue shaded by trees or a cottonwood grove 1,543,000 &Expression error: Unrecognised punctuation character ","1,474,368 &0000000000000738000000738 mi²
(1,911 km²)
State map highlighting Alameda County
Alpine County 003 Markleeville 1864 Amador, El Dorado, Calaveras, Mono and Tuolumne Named for its location high in the Sierra Nevada mountains 1,222 &Expression error: Unrecognised punctuation character ","1,061 &0000000000000739000000739 sq mi
(&00000000000019140000001,914 km2)
State map highlighting Alpine County
Amador County 005 Jackson 1854 Calaveras Jose Maria Amador (1794-1883), a soldier, rancher and miner. In 1848, Amador, with several Native Americans, established a successful gold mining camp near the present town of Amador City. In Spanish, the word amador means "one who loves." 37,943 &Expression error: Unrecognised punctuation character ","38,238 &0000000000000593000000593 sq mi
(&00000000000015360000001,536 km2)
State map highlighting Amador County
Butte County 007 Oroville 1850 Original From the Sutter Buttes, which were erroneously believed to lie within the county's borders at the time of its creation. 220,407 &Expression error: Unrecognised punctuation character ","220,337 &00000000000016400000001,640 sq mi
(&00000000000042480000004,248 km2)
State map highlighting Butte County
Calaveras County 009 San Andreas 1850 Original From the Calaveras River which in turn is named for the spanish word for skulls 46,127 &Expression error: Unrecognised punctuation character ","46,843 &00000000000010200000001,020 sq mi
(&00000000000026420000002,642 km2)
State map highlighting Calaveras County
Colusa County 011 Colusa 1850 Original From two Mexican land grants; Coluses (1844) and Colus (1845) 21,910 &Expression error: Unrecognised punctuation character ","21,204 &00000000000011510000001,151 sq mi
(&00000000000029810000002,981 km2)
State map highlighting Colusa County
Contra Costa County 013 Martinez 1850 Original Spanish for opposite coast, because Contra Costa County is across San Francisco Bay from San Francisco 1,051,674 &Expression error: Unrecognised punctuation character ","1,029,703 &0000000000000720000000720 sq mi
(&00000000000018650000001,865 km2)
State map highlighting Contra Costa County
Del Norte County 015 Crescent City 1857 Klamath Spanish for Northern, because Del Norte County is the northwesternmost county in the state. 29,419 &Expression error: Unrecognised punctuation character ","29,100 &00000000000010080000001,008 sq mi
(&00000000000026110000002,611 km2)
State map highlighting Del Norte County
El Dorado County 017 Placerville 1850 Original From the mythical El Dorado, The Gilded One, in relation to El Dorado County's importance in the California Gold Rush. 179,722 &Expression error: Unrecognised punctuation character ","176,075 &00000000000017120000001,712 sq mi
(&00000000000044340000004,434 km2)
State map highlighting El Dorado County
Fresno County 019 Fresno 1856 Mariposa, Merced and Tulare From Fresno Creek. In Spanish, Fresno means "ash tree" 931,098 &Expression error: Unrecognised punctuation character ","909,153 &00000000000059630000005,963 sq mi
(&000000000001544400000015,444 km2)
State map highlighting Fresno County
Glenn County 021 Willows 1891 Colusa Named for Dr. Hugh J. Glenn (1824-1883), a California businessman and politician. 29,195 &Expression error: Unrecognised punctuation character ","28,237 &00000000000013150000001,315 sq mi
(&00000000000034060000003,406 km2)
State map highlighting Glenn County
Humboldt County 023 Eureka 1853 Trinity From Humboldt Bay, named after Alexander von Humboldt (1769-1859), a German naturalist and explorer. 132,821 &Expression error: Unrecognised punctuation character ","129,000 &00000000000035730000003,573 sq mi
(&00000000000092540000009,254 km2)
State map highlighting Humboldt County
Imperial County 025 El Centro 1907 San Diego [6] From the Imperial Valley, which took its name from the Imperial Land Company. 176,158 &Expression error: Unrecognised punctuation character ","163,972 &00000000000041750000004,175 sq mi
(&000000000001081300000010,813 km2)
State map highlighting Imperial County
Inyo County 027 Independence 1866 Mono and Tulare From a Native American word for dwelling place of the great spirit. 18,152 &Expression error: Unrecognised punctuation character ","17,136 &000000000001019200000010,192 sq mi
(&000000000002639700000026,397 km2)
State map highlighting Inyo County
Kern County 029 Bakersfield 1866 Los Angeles and Tulare From the Kern River, named for Edward Kern (1822 - 1863), cartographer for General John C. Fremont's 1845 expedition. 817,517 &Expression error: Unrecognised punctuation character ","800,458 &00000000000081420000008,142 sq mi
(&000000000002108800000021,088 km2)
State map highlighting Kern County
Kings County 031 Hanford 1893 Tulare Kings River – Rio de los Santos Reyes (River of the Holy Kings) to honor the Biblical Magi 154,434 &Expression error: Unrecognised punctuation character ","149,518 &00000000000013900000001,390 sq mi
(&00000000000036000000003,600 km2)
State map highlighting Kings County
Lake County 033 Lakeport 1861 Napa From Clear Lake 64,059 &Expression error: Unrecognised punctuation character ","64,866 &00000000000012580000001,258 sq mi
(&00000000000032580000003,258 km2)
State map highlighting Lake County
Lassen County 035 Susanville 1864 Plumas and Shasta, and now defunct Lake County, Nevada. Peter Lassen (1800-1859), a Danish naturalist and explorer. 35,757 &Expression error: Unrecognised punctuation character ","34,574 &00000000000045580000004,558 sq mi
(&000000000001180500000011,805 km2)
State map highlighting Lassen County
Los Angeles County 037 Los Angeles 1850 Original Spanish for the Angels, abbreviated from El Pueblo de Nuestra Señora la Reina de los Angeles del Río de Porciúncula (The Village of Our Lady, the Queen of the Angels of the river of Porziuncola). 10,363,850 &Expression error: Unrecognised punctuation character ","9,862,049 &00000000000040600000004,060 sq mi
(&000000000001051500000010,515 km2)
State map highlighting Los Angeles County
Madera County 039 Madera 1893 Fresno Spanish for wood. 150,887 &Expression error: Unrecognised punctuation character ","148,333 &00000000000021380000002,138 sq mi
(&00000000000055370000005,537 km2)
State map highlighting Madera County
Marin County 041 San Rafael 1850 Original Disputed but may have been a corrupted term for Marina for its location on the San Francisco Bay. 257,406 &Expression error: Unrecognised punctuation character ","248,794 &0000000000000520000000520 sq mi
(&00000000000013470000001,347 km2)
State map highlighting Marin County
Mariposa County 043 Mariposa 1850 Original[7] Spanish and Portuguese for butterfly. 18,406 &Expression error: Unrecognised punctuation character ","17,976 &00000000000014510000001,451 sq mi
(&00000000000037580000003,758 km2)
State map highlighting Mariposa County
Mendocino County 045 Ukiah 1850 Original Antonio de Mendoza (c. 1495 - 1552), viceroy of Spain. 90,163 &Expression error: Unrecognised punctuation character ","86,221 &00000000000035090000003,509 sq mi
(&00000000000090880000009,088 km2)
State map highlighting Mendocino County
Merced County 047 Merced 1855 Mariposa From the Merced River, or in Spanish El Río de Nuestra Señora de la Merced (River of Our Lady of Mercy); named in 1806 by an expedition headed by Gabriel Moraga. 255,250 &Expression error: Unrecognised punctuation character ","246,117 &00000000000019290000001,929 sq mi
(&00000000000049960000004,996 km2)
State map highlighting Merced County
Modoc County 049 Alturas 1874 Siskiyou From the Native American Modoc people. 9,702 &Expression error: Unrecognised punctuation character ","9,184 &00000000000039440000003,944 sq mi
(&000000000001021500000010,215 km2)
State map highlighting Modoc County
Mono County 051 Bridgeport 1861 Calaveras, Fresno and Mariposa For a local Native American tribe, the Mono Paiute people. 13,759 &Expression error: Unrecognised punctuation character ","12,774 &00000000000030440000003,044 sq mi
(&00000000000078840000007,884 km2)
State map highlighting Mono County
Monterey County 053 Salinas 1850 Original From Monterey Bay. The name itself is composed of the Spanish words monte (hill) and rey (king). 428,549 &Expression error: Unrecognised punctuation character ","408,238 &00000000000033220000003,322 sq mi
(&00000000000086040000008,604 km2)
State map highlighting Monterey County
Napa County 055 Napa 1850 Original For a local Native American tribe, the Napans. 136,704 &Expression error: Unrecognised punctuation character ","133,433 &0000000000000754000000754 sq mi
(&00000000000019530000001,953 km2)
State map highlighting Napa County
Nevada County 057 Nevada City 1851 Yuba snowfall in Spanish. 99,186 &Expression error: Unrecognised punctuation character ","97,118 &0000000000000958000000958 sq mi
(&00000000000024810000002,481 km2)
State map highlighting Nevada County
Orange County 059 Santa Ana 1889 Los Angeles From the citrus fruit widely grown in the region at the time the county was formed. 3,121,251 &Expression error: Unrecognised punctuation character ","3,010,759 &0000000000000790000000790 sq mi
(&00000000000020460000002,046 km2)
State map highlighting Orange County
Placer County 061 Auburn 1851 Sutter and Yuba Named for the small flakes of gold found in the area during Gold Rush. 333,401 &Expression error: Unrecognised punctuation character ","341,945 &00000000000015030000001,503 sq mi
(&00000000000038930000003,893 km2)
State map highlighting Placer County
Plumas County 063 Quincy 1854 Butte For the Feather River, "Plumas" meaning "feathers" in Spanish. 20,917 &Expression error: Unrecognised punctuation character ","20,275 &00000000000025540000002,554 sq mi
(&00000000000066150000006,615 km2)
State map highlighting Plumas County
Riverside County 065 Riverside 1893 San Bernardino and San Diego From the city of Riverside being alongside the Santa Ana River and the boundary extends to the Colorado River. 2,088,322 &Expression error: Unrecognised punctuation character ","2,100,516 &00000000000072080000007,208 sq mi
(&000000000001866900000018,669 km2)
State map highlighting Riverside County
Sacramento County 067 Sacramento 1850 Original From the Sacramento River, itself named for the Santisimo Sacramento (Spanish for Most Holy Sacrament) a reference to the Eucharist. 1,424,415 &Expression error: Unrecognised punctuation character ","1,394,154 &0000000000000966000000966 sq mi
(&00000000000025020000002,502 km2)
State map highlighting Sacramento County
San Benito County 069 Hollister 1874 Monterey in honor of San Benedicto (Saint Benedict), Benito is the diminutive of Benedicto. 57,784 &Expression error: Unrecognised punctuation character ","54,699 &00000000000013890000001,389 sq mi
(&00000000000035970000003,597 km2)
State map highlighting San Benito County
San Bernardino County 071 San Bernardino 1853 Los Angeles Named for Saint Bernardino of Siena. The largest county in the continental U.S. 2,055,766 &Expression error: Unrecognised punctuation character ","2,015,355 &000000000002006200000020,062 sq mi
(&000000000005196000000051,960 km2)
State map highlighting San Bernardino County
San Diego County 073 San Diego 1850 Original Named for San Diego Bay, itself named for Saint Didacus of Alcalá, or San Diego de Alcalá in Spanish. 3,146,274 &Expression error: Unrecognised punctuation character ","3,001,072 &00000000000042040000004,204 sq mi
(&000000000001088800000010,888 km2)
State map highlighting San Diego County
San Francisco County 075 San Francisco 1850 Original Francis of Assisi (1181-1226), a Roman Catholic saint and founder of the Order of Friars Minor (Franciscans). 845,559 &Expression error: Unrecognised punctuation character ","845,559 &000000000000004700000047 sq mi
(&0000000000000122000000122 km2)
State map highlighting San Francisco County
San Joaquin County 077 Stockton 1850 Original Spanish for Saint Joachim. 685,660 &Expression error: Unrecognised punctuation character ","672,388 &00000000000013990000001,399 sq mi
(&00000000000036230000003,623 km2)
State map highlighting San Joaquin County
San Luis Obispo County 079 San Luis Obispo 1850 Original Spanish for St. Louis, the Bishop. 269,337 &Expression error: Unrecognised punctuation character ","265,297 &00000000000033040000003,304 sq mi
(&00000000000085570000008,557 km2)
State map highlighting San Luis Obispo County
San Mateo County 081 Redwood City 1856 San Francisco Spanish for Saint Matthew 739,469 &Expression error: Unrecognised punctuation character ","712,690 &0000000000000449000000449 sq mi
(&00000000000011630000001,163 km2)
State map highlighting San Mateo County
Santa Barbara County 083 Santa Barbara 1850 Original Spanish for Saint Barbara. 428,655 &Expression error: Unrecognised punctuation character ","405,396 &00000000000027380000002,738 sq mi
(&00000000000070910000007,091 km2)
State map highlighting Santa Barbara County
Santa Clara County 085 San Jose 1850 Original Spanish for Saint Clare, for the Santa Clara Valley and the Mission town of Santa Clara. 1,837,075 &Expression error: Unrecognised punctuation character ","1,764,499 &00000000000012910000001,291 sq mi
(&00000000000033440000003,344 km2)
State map highlighting Santa Clara County
Santa Cruz County 087 Santa Cruz 1850 Original Originally called Branciforte County, was named after the city of Santa Cruz, which, in turn, took its name from La Misión de la Exaltación de la Santa Cruz (Mission of the Exaltation of the Holy Cross), which was established on the site of the town in 1791. 266,519 &Expression error: Unrecognised punctuation character ","253,137 &0000000000000446000000446 sq mi
(&00000000000011550000001,155 km2)
State map highlighting Santa Cruz County
Shasta County 089 Redding 1850 Original After Mount Shasta despite the fact the volcanic peak isn't located in the county per se. 182,236 &Expression error: Unrecognised punctuation character ","180,214 &00000000000037860000003,786 sq mi
(&00000000000098060000009,806 km2)
State map highlighting Shasta County
Sierra County 091 Downieville 1852 Yuba Mountain range in Spanish. 3,380 &Expression error: Unrecognised punctuation character ","3,263 &0000000000000953000000953 sq mi
(&00000000000024680000002,468 km2)
State map highlighting Sierra County
Siskiyou County 093 Yreka 1852 Shasta and Klamath County named after Siskiyou Mountain Range; etymology of Siskiyou is disputed 45,971 &Expression error: Unrecognised punctuation character ","44,542 &00000000000062870000006,287 sq mi
(&000000000001628300000016,283 km2)
State map highlighting Siskiyou County
Solano County 095 Fairfield 1850 Original From an Indian Chief, Chief Solano of the Suisunes, a Native American tribe of the region. 426,757 &Expression error: Unrecognised punctuation character ","407,515 &0000000000000828000000828 sq mi
(&00000000000021450000002,145 km2)
State map highlighting Solano County
Sonoma County 097 Santa Rosa 1850 Original After the village of Sonoma. 484,470 &Expression error: Unrecognised punctuation character ","466,741 &00000000000015760000001,576 sq mi
(&00000000000040820000004,082 km2)
State map highlighting Sonoma County
Stanislaus County 099 Modesto 1854 Tuolumne For the Stanislaus River, which was named for a Yokut Indian named Estanislao 525,903 &Expression error: Unrecognised punctuation character ","510,694 &00000000000014950000001,495 sq mi
(&00000000000038720000003,872 km2)
State map highlighting Stanislaus County
Sutter County 101 Yuba City 1850 Original Named for Johann Augustus Sutter (a.k.a. John Sutter) (1803–1880), a Swiss pioneer of California known for his association with the California Gold Rush. His ranch land was originally named Nueva Helvetia after his homeland of Switzerland in Latinized-Spanish. 95,878 &Expression error: Unrecognised punctuation character ","92,207 &0000000000000603000000603 sq mi
(&00000000000015620000001,562 km2)
State map highlighting Sutter County
Tehama County 103 Red Bluff 1856 Butte, Colusa and Shasta For a local Native American tribe, the Tehama. 62,419 &Expression error: Unrecognised punctuation character ","61,550 &00000000000029510000002,951 sq mi
(&00000000000076430000007,643 km2)
State map highlighting Tehama County
Trinity County 105 Weaverville 1850 Original From the Trinity River which in turn was named after the coastal town of Trinidad, California 13,966 &Expression error: Unrecognised punctuation character ","14,317 &00000000000031790000003,179 sq mi
(&00000000000082340000008,234 km2)
State map highlighting Trinity County
Tulare County 107 Visalia 1852 Mariposa For a dry lake, Tulare Lake on the western end of the 435,254 &Expression error: Unrecognised punctuation character ","426,276 &00000000000048240000004,824 sq mi
(&000000000001249400000012,494 km2)
State map highlighting Tulare County
Tuolumne County 109 Sonora 1850 Original The name for the Tuolumne River (twah'-luh-me) has as many possible meanings as it does spellings. The original meaning of the word "Tuolumne" may have been "cave people" or "stone wigwams," both taken from the history of tribes known as "Taulamnell," or "Tahualamne," or Yokuts Indians living near Knights Ferry in the rocks and recesses by the river. Another theory is that "Tuolumne" is derived from a Central Sierra Miwok word "talmalmne" whose meaning is unclear today. 56,799 &Expression error: Unrecognised punctuation character ","55,644 &00000000000022360000002,236 sq mi
(&00000000000057910000005,791 km2)
State map highlighting Tuolumne County
Ventura County 111 Ventura 1872 Santa Barbara Abbreviation of San Buenaventura, Spanish for St. Bonaventure. 831,587 &Expression error: Unrecognised punctuation character ","797,740 &00000000000018460000001,846 sq mi
(&00000000000047810000004,781 km2)
State map highlighting Ventura County
Yolo County 113 Woodland 1850 Original For a local Native American tribe, the Yolans. 199,066 &Expression error: Unrecognised punctuation character ","197,658 &00000000000010120000001,012 sq mi
(&00000000000026210000002,621 km2)
State map highlighting Yolo County
Yuba County 115 Marysville 1850 Original For the Yuba family, who owned ranchos in the Sacramento River Valley. 71,929 &Expression error: Unrecognised punctuation character ","73,067 &0000000000000630000000630 sq mi
(&00000000000016320000001,632 km2)
State map highlighting Yuba County

Defunct counties

See also

Notes

  1. ↑ Reynolds, 48-49.
  2. ↑ "EPA County FIPS Code Listing". EPA.gov. http://www.epa.gov/enviro/html/codes/ca.html. Retrieved 2008-02-23. 
  3. ↑ 3.0 3.1 3.2 National Association of Counties. "NACo - Find a county". http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/state.cfm&state.cfm&statecode=CA. Retrieved 2008-04-30. 
  4. ↑ Sanchez, Nellie Van de Grift (1914). Spanish and Indian Place Names of California: Their Meaning and Their Romance. San Francisco: A.M. Robertson. OCLC 4268886. http://books.google.com/books?id=gKgYAAAAIAAJ&printsec=titlepage. 
  5. ↑ California Department of Finance. "2008 Population Estimate". http://www.dof.ca.gov/research/demographic/reports/estimates/e-1_2006-07/documents/E-1table.xls. Retrieved 2008-05-30. 
  6. ↑ The most recent county formed.
  7. ↑ Mariposa County was the largest of the state's original counties, but territory that was once Mariposa is now 12 other counties -- Fresno, Inyo, Kern, Kings, Los Angeles, Madera, Merced, Mono, San Benito, San Bernardino, San Luis Obispo, and Tulare.

External links