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. 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. Most of these are listed here, by their public name which they call themselves on their District websites. Alameda County Alameda Unified School District Albany Unified School District Berkeley Unified School District Castro Valley Unified School District Dublin Unified School District Emery Unified School District Fremont Unified School District Hayward Unified School District Livermore Valley Joint Unified School District Mountain House Elementary School District New Haven Unified School District Newark Unified School District Oakland Unified School District Piedmont Unified School District Pleasanton Unified School District San Leandro Unified School District San Lorenzo Unified School District Sunol Glen Unified School District Alpine County Alpine County Unified School District Amador County Amador County Unified School District Butte County Bangor Union Elementary School District Biggs Unified School District Chico Unified School District Durham Unified School District Golden Feather Union Elementary School District Gridley Unified School District Manzanita Elementary School District Oroville City Elementary School District Oroville Union High School District Palermo Union School District Paradise Unified School District Pioneer Union Elementary School District Thermalito Union School District Calaveras County Bret Harte Union High School District Calaveras Unified School District Mark Twain Union Elementary School District Vallecito Union School District Colusa County Colusa Unified School District Maxwell Unified School District Pierce Joint Unified School District Williams Unified School District Contra Costa