This is a list of school districts in California. California school districts are of several varieties, usually a Unified district, which includes all of the Elementary and ****High Schools in the same geographic area; Elementary school districts, which includes K–6 or K–8 schools only, which may have several elementary districts within one high school district's geographic area; and High School Districts, which include one or more high schools in the same geographic area. Elementary districts sometimes includes the word Elementary within their names, but often do not. Sometimes the words Joint and/or Union are included in the district's name. A joint school district serves students from more than one county. A union elementary school district was formed as the result of a merger between two previous school districts, while a union high school district serves students from multiple elementary school districts. Elementary school districts can be classified as: city school district, regular district, union district, or joint union district. High school districts can be categorized as a union district, a joint union district, or a county district. These, along with unified school districts and community college districts, are counted as separate governments by the U.S. Census Bureau. The typical district grade configurations in California are elementary (K–8), high (9–12), and unified (K–12), but there are some K–6 elementary districts and a handful of 7–12 high school districts. Districts sometimes merge or consolidate; the number of districts can change annually. County and city-operated special schools are not counted as separate governments by the Census Bureau. Most of the school districts are listed here, by their public name which they call themselves on their district websites.

Alameda County

Alpine County

Amador County

Butte County

Calaveras County

Colusa County

Contra Costa County

Del Norte County

El Dorado County

Fresno County

Glenn County

Humboldt County

Imperial County

Inyo County

Kern County

Kings County

Lake County

Lassen County

Los Angeles County

Madera County

Marin County

Mariposa County

Mendocino County

Merced County

Modoc County

Mono County

Monterey County

Napa County

Nevada County

Orange County

Placer County

Plumas County

Riverside County

Sacramento County

San Benito County

San Bernardino County

San Diego County

San Francisco County

San Joaquin County

San Luis Obispo County

San Mateo County

Santa Barbara County

Santa Clara County

Santa Cruz County

Shasta County

Sierra County

Siskiyou County

Solano County

Sonoma County

Stanislaus County

Sutter County

Tehama County

Trinity County

Tulare County

Tuolumne County

Ventura County

Yolo County

Yuba County