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California
There are 58 Counties in California
Click the state map for a larger view or select a county from the list below to view a listing of the county officials and other information pertaining to that county.
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| County |
NACo
Member |
2000
Population |
Square
Miles |
County Seat |
Founded |
|
Alameda
|
|
1,443,741
|
738
|
Oakland
|
1853
|
|
Alpine
|
|
1,208
|
739
|
Markleeville
|
1864
|
|
Amador
|
|
35,100
|
593
|
Jackson
|
1854
|
|
Butte
|
|
203,171
|
1,640
|
Oroville
|
1850
|
|
Calaveras
|
|
40,554
|
1,020
|
San Andreas
|
1850
|
|
Colusa
|
|
18,804
|
1,151
|
Colusa
|
1850
|
|
Contra Costa
|
|
948,816
|
720
|
Martinez
|
1850
|
|
Del Norte
|
|
27,507
|
1,008
|
Crescent City
|
1857
|
|
El Dorado
|
|
156,299
|
1,712
|
Placerville
|
1850
|
|
Fresno
|
|
799,407
|
5,963
|
Fresno
|
1856
|
|
Glenn
|
|
26,453
|
1,315
|
Willows
|
1891
|
|
Humboldt
|
|
126,518
|
3,573
|
Eureka
|
1853
|
|
Imperial
|
|
142,361
|
4,175
|
El Centro
|
1907
|
|
Inyo
|
|
17,945
|
10,192
|
Independence
|
1866
|
|
Kern
|
|
661,645
|
8,142
|
Bakersfield
|
1866
|
|
Kings
|
|
129,461
|
1,390
|
Hanford
|
1893
|
|
Lake
|
|
58,309
|
1,258
|
Lakeport
|
1861
|
|
Lassen
|
|
33,828
|
4,558
|
Susanville
|
1864
|
|
Los Angeles
|
|
9,519,338
|
4,060
|
Los Angeles
|
1850
|
|
Madera
|
|
123,109
|
2,138
|
Madera
|
1893
|
|
Marin
|
|
247,289
|
520
|
San Rafael
|
1850
|
|
Mariposa
|
|
17,130
|
1,451
|
Mariposa
|
1850
|
|
Mendocino
|
|
86,265
|
3,509
|
Ukiah
|
1850
|
|
Merced
|
|
210,554
|
1,929
|
Merced
|
1855
|
|
Modoc
|
|
9,449
|
3,944
|
Alturas
|
1874
|
|
Mono
|
|
12,853
|
3,044
|
Bridgeport
|
1861
|
|
Monterey
|
|
401,762
|
3,322
|
Salinas
|
1850
|
|
Napa
|
|
124,279
|
754
|
Napa
|
1850
|
|
Nevada
|
|
92,033
|
958
|
Nevada City
|
1851
|
|
Orange
|
|
2,846,289
|
790
|
Santa Ana
|
1889
|
|
Placer
|
|
248,399
|
1,404
|
Auburn
|
1851
|
|
Plumas
|
|
20,824
|
2,554
|
Quincy
|
1854
|
|
Riverside
|
|
1,545,387
|
7,208
|
Riverside
|
1893
|
|
Sacramento
|
|
1,223,499
|
966
|
Sacramento
|
1850
|
|
San Benito
|
|
53,234
|
1,389
|
Hollister
|
1874
|
|
San Bernardino
|
|
1,709,434
|
20,062
|
San Bernardino
|
1853
|
|
San Diego
|
|
2,813,833
|
4,204
|
San Diego
|
1850
|
|
San Francisco
*
|
|
776,733
|
47
|
San Francisco
|
1850
|
|
San Joaquin
|
|
563,598
|
1,399
|
Stockton
|
1850
|
|
San Luis Obispo
|
|
246,681
|
3,304
|
San Luis Obispo
|
1850
|
|
San Mateo
|
|
707,161
|
449
|
Redwood City
|
1856
|
|
Santa Barbara
|
|
399,347
|
2,738
|
Santa Barbara
|
1850
|
|
Santa Clara
|
|
1,682,585
|
1,291
|
San Jose
|
1850
|
|
Santa Cruz
|
|
255,602
|
446
|
Santa Cruz
|
1850
|
|
Shasta
|
|
163,256
|
3,786
|
Redding
|
1850
|
|
Sierra
|
|
3,555
|
953
|
Downieville
|
1852
|
|
Siskiyou
|
|
44,301
|
6,287
|
Yreka
|
1852
|
|
Solano
|
|
394,542
|
828
|
Fairfield
|
1850
|
|
Sonoma
|
|
458,614
|
1,576
|
Santa Rosa
|
1850
|
|
Stanislaus
|
|
446,997
|
1,495
|
Modesto
|
1854
|
|
Sutter
|
|
78,930
|
603
|
Yuba City
|
1850
|
|
Tehama
|
|
56,039
|
2,951
|
Red Bluff
|
1856
|
|
Trinity
|
|
13,022
|
3,179
|
Weaverville
|
1850
|
|
Tulare
|
|
368,021
|
4,824
|
Visalia
|
1852
|
|
Tuolumne
|
|
54,501
|
2,236
|
Sonora
|
1850
|
|
Ventura
|
|
753,197
|
1,846
|
Ventura
|
1873
|
|
Yolo
|
|
168,660
|
1,012
|
Woodland
|
1850
|
|
Yuba
|
|
60,219
|
630
|
Marysville
|
1850
|
* Consolidated City-County Government
To report any updates, deletions or additions, contact Database Updates
or send a fax to NACo, Attn: Database Updates (202)393-2630.
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