Jefferson High School: (650) 550-7700
Oceana High School: (650) 550-7300
Terra Nova High School: (650) 550-7600
Thornton High School: (650) 550-7840
Westmoor High School: (650) 550-7400
District Office: (650) 550-7900
Online Registration Help: Registration@JeffersonUnion.net
ParentVUE / StudentVUE / Online Registration Technical Assistance: SynergyHelp@JeffersonUnion.net