CA Counties

Listed below are all 58 counties in California, together with the county seat for each and a link to key information on that particular county -- including its demography, elected officials and other fun data.  Thanks to the National Association of Counties for the fun facts!

County County Seat
Alameda County Oakland
Alpine County Markleeville
Amador County Jackson
Butte County Oroville
Calaveras County San Andreas
Colusa County Colusa
Contra Costa County Martinez
Del Norte County Crescent City
El Dorado County Placerville
Fresno County Fresno
Glenn County Willows
Humboldt County Eureka
Imperial County El Centro
Inyo County Independence
Kern County Bakersfield
Kings County Hanford
Lake County Lakeport
Lassen County Susanville
Los Angeles County Los Angeles
Madera County Madera
Marin County San Rafael
Mariposa County Mariposa
Mendocino County Ukiah
Merced County Merced
Modoc County Alturas
Mono County Bridgeport
Monterey County Salinas
Napa County Napa
Nevada County Nevada City
Orange County Santa Ana
Placer County Auburn
Plumas County Quincy
Riverside County Riverside
Sacramento County Sacramento
San Benito County Hollister
San Bernardino County San Bernardino
San Diego County San Diego
San Francisco City & County San Francisco
San Joaquin County Stockton
San Luis Obispo County San Luis Obispo
San Mateo County Redwood City
Santa Barbara County Santa Barbara
Santa Clara County San Jose
Santa Cruz County Santa Cruz
Shasta County Redding
Sierra County Downieville
Siskiyou County Yreka
Solano County Fairfield
Sonoma County Santa Rosa
Stanislaus County Modesto
Sutter County Yuba City
Tehama County Red Bluff
Trinity County Weaverville
Tulare County Visalia
Tuolumne County Sonora
Ventura County Ventura
Yolo County Woodland
Yuba County Marysville