Northgate High School, which opened in 1974, is part of the Mt. Diablo Unified School District. Its name comes from its location near the north entrance of Mount Diablo State Park.
The school's principal is John McMorris.
The following data is from 2008-09, unless otherwise noted:
- 2009 Base API: 855
- 2010 STAR results: 77 percent of 9th-11th graders proficient or advanced in language arts
- Percentage of parents who are college graduates: 32
- Percentage of students who are English learners: 1.7
- Percentage of students who are: White, 68.3; Asian, 18.3; Hispanic, 7.5; Filipino, 3.5; African-American, 1.6; Pacific Islander, 0.4.
- Percentage who students who receive free or reduced-priced lunches: 3.8
- Number of expulsions/suspensions involving drugs or violence: Expulsions, 0; suspensions, 35
Source: California Department of Education and Ed-Data