County

Date
Formed

Parent County

County Seat

Contact
Name

Alameda

1853

Contra Costa, Santa Clara

Oakland

Cat Nielsen

Alpine

1864

El Dorado, Amador, Calaveras

Markleeville

Elizabeth E Bullard-Watson

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

Ray Ensing

Glenn

1891

Colusa

Willows

Martha A. Crosley Graham

Humboldt

1853

Trinity

Eureka

Martha A. Graham & Wes Keat

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

Dorothea Williams

Klamath

1851

Trinity

No Longer Exists

Linda Nichols

Lake

1861

Napa

Lakeport

Anita Crabtree

Lassen

1864

Plumas, Shasta

Susanville

Elizabeth E Bullard-Watson

Los Angeles

1850

Original County

Los Angeles

Ray Ensing

Madera

1893

Mariposa, Fresno

Madera

Ken Doig

Marin

1850

Original County

San Rafael

Cathy Gowdy

Mariposa

1850

Original County

Mariposa

Adopt Me

Mendocino

1850

Original County

Ukiah

Lewis M. Ruddick

Merced

1855

Mariposa

Merced

Adopt Me

Modoc

1874

Siskiyou

Alturas

Julie A. Appletoft

Mono

1861

Calaveras, Fresno

Bridgeport

Denise S. Flynn

Monterey

1850

Original County

Salinas

Claire Martin

Napa

1850

Original County

Napa

Julie Appletoft

Nevada

1851

Yuba

Nevada City

Maria White Brower

Orange

1889

Los Angeles

Santa Ana

Ray Ensing

Placer

1851

Yuba, Sutter

Auburn

Ken Gissy

Plumas

1854

Butte

Quincy

Elizabeth E. Bullard-Watson

Riverside

1893

San Diego, San Bernardino

Riverside

Steve Lech

Sacramento

1850

Original County

Sacramento

Cat Nielsen

San Benito

1874

Monterey

Hollister

Susan Cherry-Boyer

San Bernardino

1853

Los Angeles

San Bernardino

Steve Lech

San Diego

1850

Original County

San Diego

Sheila Larson

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 Graham

San Mateo

1856

San Francisco

Redwood City

Regina Gualco

Santa Barbara

1850

Original County

Santa Barbara

Dorothy Oksner

Santa Clara

1850

Original County

San Jose

Claire Martin

Santa Cruz

1850

Original County

Santa Cruz

Wayne Thalls

Shasta

1850

Original County

Redding

Dottie Smith

Sierra

1852

Yuba

Downieville

Richard S. Wilson

Siskiyou

1852

Shasta, Klamath, Oregon

Yreka

Edward A. Black, Sr.

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

Linda Simpson

Tehama

1856

Colusa, Butte, Shasta

Red Bluff

Edward A. Black, Sr.

Trinity

1850

Original County

Weaverville

Linda Simpson

Tulare

1852

Mariposa

Visalia

Steve Williams

Tuolumne

1850

Original County

Sonora

Bill Koch

Ventura

1872

Santa Barbara

Ventura

Steve Sullivan

Yolo

1850

Original County

Woodland

Peggy B Perazzo

Yuba

1850

Original County

Marysville

Adopt Me

Unknown County

n/a

Queries

n/a

Colleen Norby