The Jefferson Union High School District (JUHSD) is a high school district in northern San Mateo County, California, which serves the cities of Daly City, Brisbane and Pacifica, the town of Colma, the CDP of Broadmoor and a section of San Bruno.

Voters approved a bond of $180,000 in November 1922 for a new high school building, which was dedicated on May 23, 1925.

[5] At the time, it was proposed to relocate Oceana to the Serramonte campus to save money to restore a state-mandated $750,000 reserve fund for the district.

[6] The former campus, now renamed Serramonte Del Rey, serves as the district office.

[8] According to the California Department of Education, the total enrollment for Jefferson Union High School District is 4,862 in the 2016–17 academic year.