San Mateo High
PublicHighGrades 9–12
506 North Delaware St., San Mateo, CA 94401 · (650) 558-2399 · Part of San Mateo Union High School District
San Mateo’s School Grade A better than 86% of California school districts
Students
1,557
Students per teacher
20:1
Free or reduced lunch
38%
Setting
City
Grades
9–12
What stands out about San Mateo High
- Larger classes: 20 students per teacher
- No state test results published for this school
On the path
Where San Mateo kids come from and go next. The whole path →
6–85 middle schoolsDepends on your address
9–12San Mateo HighYou are here
Location
Directions ↗
506 North Delaware St., San Mateo
Students
Enrollment by grade
Grade 9427
Grade 10379
Grade 11357
Grade 12394
Enrollment over time
1,671’20
1,669’21
1,613’22
1,578’23
1,557’24
Down 6.8% since 2020–21.
Who goes here
Hispanic 48%Asian 26%White 16%Two or more races 8%Native Hawaiian/Pacific Islander 2%Black <1%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about San Mateo High from San Mateo families.
Other schools in San Mateo Union High School District
School facts: U.S. Department of Education (NCES), 2024–2025 school year. Map: © OpenStreetMap contributors.