California
58 counties · Pop: 39,538,223
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Counties in California
Alameda
County Seat: Oakland
Pop: 1,671,329
Alpine
County Seat: Markleeville
Pop: 1,129
Amador
County Seat: Jackson
Pop: 40,474
Butte
County Seat: Oroville
Pop: 211,632
Calaveras
County Seat: San Andreas
Pop: 45,602
Colusa
County Seat: Colusa
Pop: 21,917
Contra Costa
County Seat: Martinez
Pop: 1,165,927
Del Norte
County Seat: Crescent City
Pop: 27,743
El Dorado
County Seat: Placerville
Pop: 191,185
Fresno
County Seat: Fresno
Pop: 1,008,654
Glenn
County Seat: Willows
Pop: 28,917
Humboldt
County Seat: Eureka
Pop: 136,463
Imperial
County Seat: El Centro
Pop: 181,215
Inyo
County Seat: Independence
Pop: 18,039
Kern
County Seat: Bakersfield
Pop: 909,235
Kings
County Seat: Hanford
Pop: 153,443
Lake
County Seat: Lakeport
Pop: 68,163
Lassen
County Seat: Susanville
Pop: 30,573
Los Angeles
County Seat: Los Angeles
Pop: 10,014,009
Madera
County Seat: Madera
Pop: 157,327
Marin
County Seat: San Rafael
Pop: 262,321
Mariposa
County Seat: Mariposa
Pop: 17,131
Mendocino
County Seat: Ukiah
Pop: 91,601
Merced
County Seat: Merced
Pop: 286,461
Modoc
County Seat: Alturas
Pop: 8,700
Mono
County Seat: Bridgeport
Pop: 13,195
Monterey
County Seat: Salinas
Pop: 439,035
Napa
County Seat: Napa
Pop: 138,019
Nevada
County Seat: Nevada City
Pop: 102,241
Orange
County Seat: Santa Ana
Pop: 3,186,989
Placer
County Seat: Auburn
Pop: 404,739
Plumas
County Seat: Quincy
Pop: 19,790
Riverside
County Seat: Riverside
Pop: 2,470,546
Sacramento
County Seat: Sacramento
Pop: 1,585,055
San Benito
County Seat: Hollister
Pop: 64,209
San Bernardino
County Seat: San Bernardino
Pop: 2,180,085
San Diego
County Seat: San Diego
Pop: 3,298,634
San Francisco
County Seat: San Francisco
Pop: 873,965
San Joaquin
County Seat: Stockton
Pop: 779,233
San Luis Obispo
County Seat: San Luis Obispo
Pop: 282,424
San Mateo
County Seat: Redwood City
Pop: 764,442
Santa Barbara
County Seat: Santa Barbara
Pop: 446,499
Santa Clara
County Seat: San Jose
Pop: 1,936,259
Santa Cruz
County Seat: Santa Cruz
Pop: 270,861
Shasta
County Seat: Redding
Pop: 180,080
Sierra
County Seat: Downieville
Pop: 3,236
Siskiyou
County Seat: Yreka
Pop: 44,076
Solano
County Seat: Fairfield
Pop: 453,491
Sonoma
County Seat: Santa Rosa
Pop: 488,863
Stanislaus
County Seat: Modesto
Pop: 552,878
Sutter
County Seat: Yuba City
Pop: 99,633
Tehama
County Seat: Red Bluff
Pop: 65,829
Trinity
County Seat: Weaverville
Pop: 16,112
Tulare
County Seat: Visalia
Pop: 473,117
Tuolumne
County Seat: Sonora
Pop: 55,810
Ventura
County Seat: Ventura
Pop: 843,843
Yolo
County Seat: Woodland
Pop: 216,403
Yuba
County Seat: Marysville
Pop: 81,575