[Queries or Information about Counties should be directed to the County Coordinator]

County	Date Formed	Parent County	County Seat	County Coordinator
Alameda	1853	Contra Costa, Santa Clara	Oakland	Available for Adoption
Alpine	1864	El Dorado, Amador, Calaveras	Markleeville	Eliza Bullard
Amador	1854	Calaveras	Jackson	Lewis M. Ruddick
Butte	1850	Original County	Oroville	Martha A. Crosley Graham
Calaveras	1850	Original County	San Andreas	Lewis M. Ruddick
Colusa	1850	Original County	Colusa	John L Morton
Contra Costa	1850	Original County	Martinez	Linda Brown
Del Norte	1857	Klamath	Crescent City	Linda Nichols
El Dorado	1850	Original County	Placerville	Marc Irish
Fresno	1856	Merced, Mariposa	Fresno	John Reeder
Glenn	1891	Colusa	Willows	Martha A. Crosley Graham
Humboldt	1853	Trinity	Eureka	Martha A. Graham
Imperial	1907	San Diego	El Centro	Edward A. Black, Sr.
Inyo	1866	Tulare	Independence	Denise S. Flynn
Kern	1866	Tulare, Los Angeles	Bakersfield	Edward A. Black, Sr.
Kings	1893	Tulare, Fresno	Hanford	Alice J McCord
Lake	1861	Napa	Lakeport	Anita Crabtree
Lassen	1864	Plumas, Shasta	Susanville	Eliza Bullard
Los Angeles	1850	Original County	Los Angeles	Joy Fisher
Madera	1893	Mariposa, Fresno	Madera	Ken Doig
Marin	1850	Original County	San Rafael	Wallace Miceli
Mariposa	1850	Original County	Mariposa	Sharon Dulcich
Mendocino	1850	Original County	Ukiah	Lewis M. Ruddick
Merced	1855	Mariposa	Merced	John Reeder
Modoc	1874	Siskiyou	Alturas	Available for Adoption
Mono	1861	Calaveras, Fresno	Bridgeport	Denise S. Flynn
Monterey	1850	Original County	Salinas	Claire Martin
Napa	1850	Original County	Napa	Ruth Jenkins-McIntire
Nevada	1851	Yuba	Nevada City	Marilou West Ficklin
Orange	1889	Los Angeles	Santa Ana	Available for Adoption
Placer	1851	Yuba, Sutter	Auburn	Jeannette M Harper
Plumas	1854	Butte	Quincy	Eliza Bullard
Riverside	1893	San Diego, San Bernardino	Riverside	Steve Lech
Sacramento	1850	Original County	Sacramento	Jeannette M Harper
San Benito	1874	Monterey	Hollister	Susan Cherry-Manchester
San Bernardino	1853	Los Angeles	San Bernardino	Steve Lech
San Diego	1850	Original County	San Diego	Marna L Clemons
San Francisco	1850	Original County	San Francisco	Joyce Pilgrim
San Joaquin	1850	Original County	Stockton	Colleen Norby
San Luis Obispo	1850	Original County	San Luis Obispo	Linda Donnelly & Martha A Graham
San Mateo	1856	San Francisco	Redwood City	Joyce Pilgrim
Santa Barbara	1850	Original County	Santa Barbara	LaRae Halsey-Brooks & Erieann Brooks
Santa Clara	1850	Original County	San Jose	Claire Martin
Santa Cruz	1850	Original County	Santa Cruz	Wayne Thalls
Shasta	1850	Original County	Redding	Wallace Miceli
Sierra	1852	Yuba	Downieville	Rick Hanson
Siskiyou	1852	Shasta, Klamath, Oregon	Yreka	Leah Allen
Solano	1850	Original County	Fairfield	Claire Martin
Sonoma	1850	Original County	Santa Rosa	Lewis M. Ruddick
Stanislaus	1854	Tuolumne	Modesto	Lewis M. Ruddick
Sutter	1850	Original County	Yuba City	Steve Shepard
Tehama	1856	Colusa, Butte, Shasta	Red Bluff	Jeannette M Harper
Trinity	1850	Original County	Weaverville	Jeannette M Harper
Tulare	1852	Mariposa	Visalia	Steve Williams
Tuolumne	1850	Original County	Sonora	Eliza Bullard
Ventura	1872	Santa Barbara	Ventura	LaRae Halsey-Brooks & Erieann Brooks
Yolo	1850	Original County	Woodland	Peggy B Perazzo
Yuba	1850	Original County	Marysville	Linda Simpson
Unknown County	n/a	Queries	n/a	Colleen Norby

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Site Updated: 31 January 2012