Home › California › San Mateo County
San Mateo Union High Schools
San Mateo Union High is a public school district in California, based in San Mateo County (San Mateo). SchoolGrade grades 7 of its schools on actual versus projected test scores; every school below has its own page.
San Mateo Union High on the map
District boundary from the NCES EDGE composite school district file. Each marker is a graded school; click it for its grade and scores.
SchoolGrade summary for San Mateo Union High
7 of 7 schools in San Mateo Union High carry a SchoolGrade. Grade distribution:
A: 5B: 1D: 1
Best schools in San Mateo Union High
Statewide rankings: all 1561 high schools in California · all 1283 middle schools in California · all 5668 elementary schools in California
The ten highest SchoolGrades in the district. Grades reward actual test performance against the projection for each school's student context, so a B in a high-poverty school can outrank an A- elsewhere on impact.
- A+ Burlingame High (High school, greatly exceeds expectations)
- A+ Aragon High (High school, greatly exceeds expectations)
- A+ Mills High (High school, greatly exceeds expectations)
- A- Hillsdale High (High school, meets expectations)
- A- San Mateo High (High school, meets expectations)
- B Capuchino High (High school, meets expectations)
- D Peninsula High Continuation (High school, underperforms expectations)
Every school in San Mateo Union High
High schools (7)
- A+ Aragon High, San Mateo
- A+ Burlingame High, Burlingame
- B Capuchino High, San Bruno
- A- Hillsdale High, San Mateo
- A+ Mills High, Millbrae
- D Peninsula High Continuation, Burlingame
- A- San Mateo High, San Mateo
Where San Mateo Union High schools are
Cities and towns served (4)
- San Mateo (3)
- Burlingame (2)
- Millbrae (1)
- San Bruno (1)
About this district
- State: Best schools in California
- County: San Mateo County
- Type: regular local school district
- Setting: midsize city (NCES locale of the district office)
- Enrollment: 8,841 students with 456 full-time-equivalent teachers and 1,012 total staff FTE (NCES CCD, 2023-24)
- NCES district ID: 0634980
- Grades are the 2025-26 SchoolGrade model: each school's actual proficiency against the level projected for its student context. How SchoolGrade works
Nearby school districts
- Burlingame Elementary (7 schools, 2 mi)
- Hillsborough City Elementary (4 schools, 2 mi)
- San Mateo-Foster City (21 schools, 3 mi)
- Millbrae Elementary (5 schools, 3 mi)
- San Bruno Park Elementary (6 schools, 5 mi)
- Belmont-Redwood Shores Elementary (7 schools, 6 mi)
- South San Francisco Unified (15 schools, 6 mi)
- San Carlos Elementary (8 schools, 6 mi)
Questions about San Mateo Union High
How many schools are in San Mateo Union High?
SchoolGrade grades 7 public schools in San Mateo Union High, across 4 cities and towns. Every one of them is listed on this page with a link to its own report.
Which cities does San Mateo Union High serve?
The largest by graded schools: San Mateo, Burlingame, Millbrae, San Bruno.
How good are the schools in San Mateo Union High?
Across the 7 graded schools, the average SchoolGrade is B+, with 50.7% of tested students meeting the state bar against a projected 57.1%. 86% of schools meet or exceed the expectation for their student context.
How many students attend San Mateo Union High?
8,841 students were enrolled in San Mateo Union High in the 2023-24 school year, about 19.4 students per full-time teacher (NCES Common Core of Data).
Where is San Mateo Union High?
San Mateo Union High is in California, based in San Mateo County, with its district office in San Mateo. Its boundary covers about 63.2 sq mi.