County | Date Formed | Parent County | County Seat | Contact Name |
---|---|---|---|---|
Alameda | 1853 | Contra Costa, Santa Clara | Oakland | Available |
Alpine | 1864 | Eldorado, Amador, Calaveras | Markleeville | Available |
Amador | 1854 | Calaveras | Jackson | Available |
Butte | 1850 | Original County | Oroville | Available |
Calaveras | 1850 | Original County | San Andreas | Available |
Colusa | 1850 | Original County | Colusa | Available |
Contra Costa | 1850 | Original County | Martinez | Available |
Del Norte | 1857 | Klamath | Crescent City | Available |
El Dorado | 1850 | Original County | Placerville | Available |
Fresno | 1856 | Merced, Mariposa | Fresno | Available |
Glenn | 1891 | Colusa | Willows | Available |
Humboldt | 1853 | Trinity | Eureka | Available |
Imperial | 1907 | San Diego | El Centro | Available |
Inyo | 1866 | Tulare | Independence | Available |
Kern | 1866 | Tulare, Los Angeles | Bakersfield | Trisha Bleau |
Kings | 1893 | Tulare, Fresno | Hanford | Available |
Klamath | 1851 | Trinity | No Longer Exists | Available |
Lake | 1861 | Napa | Lakeport | Available |
Lassen | 1864 | Plumas, Shasta | Susanville | Available |
Los Angeles | 1850 | Original County | Los Angeles | Ray Ensing |
Madera | 1893 | Mariposa, Fresno | Madera | Available |
Marin | 1850 | Original County | San Rafael | Available |
Mariposa | 1850 | Original County | Mariposa | Available |
Mendocino | 1850 | Original County | Ukiah | Available |
Merced | 1855 | Mariposa | Merced | Available |
Modoc | 1874 | Siskiyou | Alturas | Judy Wallis White |
Mono | 1861 | Calaveras, Fresno | Bridgeport | Available |
Monterey | 1850 | Original County | Salinas | Available |
Napa | 1850 | Original County | Napa | Available |
Nevada | 1851 | Yuba | Nevada City | Available |
Orange | 1889 | Los Angeles | Santa Ana | Steve Johnson & John DePoto |
Placer | 1851 | Yuba, Sutter | Auburn | Available |
Plumas | 1854 | Butte | Quincy | Available |
Riverside | 1893 | San Diego, San Bernardino | Riverside | Steve Lech |
Sacramento | 1850 | Original County | Sacramento | Jacque Rogers |
San Benito | 1874 | Monterey | Hollister | Available |
San Bernardino | 1853 | Los Angeles | San Bernardino | Steve Lech |
San Diego | 1850 | Original County | San Diego | Available |
San Francisco | 1850 | Original County | San Francisco | Available |
San Joaquin | 1850 | Original County | Stockton | Available |
San Luis Obispo | 1850 | Original County | San Luis Obispo | Available |
San Mateo | 1856 | San Francisco | Redwood City | Available |
Santa Barbara | 1850 | Original County | Santa Barbara | Fred Smoot |
Santa Clara | 1850 | Original County | San Jose | Available |
Santa Cruz | 1850 | Original County | Santa Cruz | Available |
Shasta | 1850 | Original County | Redding | Available |
Sierra | 1852 | Yuba | Downieville | Available |
Siskiyou | 1852 | Shasta, Klamath, Oregon | Yreka | Steve & Laura Melton |
Solano | 1850 | Original County | Fairfield | Available |
Sonoma | 1850 | Original County | Santa Rosa | Debra McCann |
Stanislaus | 1854 | Tuolumne | Modesto | Available |
Sutter | 1850 | Original County | Yuba City | Available |
Tehama | 1856 | Colusa, Butte, Shasta | Red Bluff | Available |
Trinity | 1850 | Original County | Weaverville | Available |
Tulare | 1852 | Mariposa | Visalia | Available |
Tuolumne | 1850 | Original County | Sonora | Available |
Ventura | 1872 | Santa Barbara | Ventura | Available |
Yolo | 1850 | Original County | Woodland | Available |
Yuba | 1850 | Original County | Marysville | Available |
Additional county coordinators are welcome. If you would like to add a link to your independent California county history and genealogy web site, please contact the California state coordinator. To find out more about the American History and Genealogy Project, visit the AHGP home page.
Return to California AHGP home page
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