|
 California
Links
|
County |
Date
Formed |
Parent County |
County Seat |
|
Alameda |
1853 |
Contra Costa, Santa Clara |
Oakland |
|
Alpine |
1864 |
Eldorado, Amador, Calaveras |
Markleeville |
|
Amador |
1854 |
Calaveras |
Jackson |
|
Butte |
1850 |
Original County |
Oroville |
|
Calaveras |
1850 |
Original County |
San Andreas |
|
Colusa |
1850 |
Original County |
Colusa |
|
Contra
Costa |
1850 |
Original County |
Martinez |
|
Del Norte |
1857 |
Klamath |
Crescent City |
|
El Dorado |
1850 |
Original County |
Placerville |
|
Fresno |
1856 |
Merced, Mariposa |
Fresno |
|
Glenn |
1891 |
Colusa |
Willows |
|
Humboldt |
1853 |
Trinity |
Eureka |
|
Imperial |
1907 |
San Diego |
El Centro |
|
Inyo |
1866 |
Tulare |
Independence |
|
Kern |
1866 |
Tulare, Los Angeles |
Bakersfield |
|
Kings |
1893 |
Tulare, Fresno |
Hanford |
|
Klamath |
1851 |
Trinity |
No Longer Exists |
|
Lake |
1861 |
Napa |
Lakeport |
|
Lassen |
1864 |
Plumas, Shasta |
Susanville |
|
Los Angeles |
1850 |
Original County |
Los Angeles |
|
Madera |
1893 |
Mariposa, Fresno |
Madera |
|
Marin |
1850 |
Original County |
San Rafael |
|
Mariposa |
1850 |
Original County |
Mariposa |
|
Mendocino |
1850 |
Original County |
Ukiah |
|
Merced |
1855 |
Mariposa |
Merced |
|
Modoc |
1874 |
Siskiyou |
Alturas |
|
Mono |
1861 |
Calaveras, Fresno |
Bridgeport |
|
Monterey |
1850 |
Original County |
Salinas |
|
Napa |
1850 |
Original County |
Napa |
|
Nevada |
1851 |
Yuba |
Nevada City |
|
Orange |
1889 |
Los Angeles |
Santa Ana |
|
Placer |
1851 |
Yuba, Sutter |
Auburn |
|
Plumas |
1854 |
Butte |
Quincy |
|
Riverside |
1893 |
San Diego, San Bernardino |
Riverside |
|
Sacramento |
1850 |
Original County |
Sacramento |
|
San Benito |
1874 |
Monterey |
Hollister |
|
San Bernardino |
1853 |
Los Angeles |
San Bernardino |
|
San Diego |
1850 |
Original County |
San Diego |
|
San
Francisco |
1850 |
Original County |
San Francisco |
|
San Joaquin |
1850 |
Original County |
Stockton |
|
San Luis Obispo |
1850 |
Original County |
San Luis Obispo |
|
San Mateo |
1856 |
San Francisco |
Redwood City |
|
Santa Barbara |
1850 |
Original County |
Santa Barbara |
|
Santa
Clara |
1850 |
Original County |
San Jose |
|
Santa Cruz |
1850 |
Original County |
Santa Cruz |
|
Shasta |
1850 |
Original County |
Redding |
|
Sierra |
1852 |
Yuba |
Downieville |
|
Siskiyou |
1852 |
Shasta, Klamath, Oregon |
Yreka |
|
Solano |
1850 |
Original County |
Fairfield |
|
Sonoma |
1850 |
Original County |
Santa Rosa |
|
Stanislaus |
1854 |
Tuolumne |
Modesto |
|
Sutter |
1850 |
Original County |
Yuba |
|
Tehama |
1856 |
Colusa, Butte, Shasta |
Red Bluff |
|
Trinity |
1850 |
Original County |
Weaverville |
|
Tulare |
1852 |
Mariposa |
Visalia |
|
Tuolumne |
1850 |
Original County |
Sonora |
|
Ventura |
1872 |
Santa Barbara |
Ventura |
|
Yolo |
1850 |
Original County |
Woodland |
|
Yuba |
1850 |
Original County |
Marysville |
|
