ABCUSD serves the cities of Artesia, most of Cerritos, Hawaiian Gardens, the portion of Lakewood east of the San Gabriel River, as well as tiny portions of Long Beach, Norwalk, La Mirada, and Santa Fe Springs[1] "ABC" stands for Artesia (founded in 1875), Bloomfield (founded in 1885), and Carmenita (founded in 1902), three districts which were unified in 1965.

The Patricia Nixon Elementary School is located in Cerritos.

The school is named after the late First Lady of the United States Pat Nixon.

It was also the site where one of the planes involved in the Cerritos Mid Air Collision of 1986 crashed into the ground.

ABC Unified School District's Board of Education members are elected by geographical district, to a four-year term.