San Mateo High
Public
High Grades 9–12
Part of San Mateo Union High
506 North Delaware St., San Mateo, CA 94401 · (650) 558-2399
Community ratings
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Academic performanceComing soon
State test scores coming soon
Proficiency and other measures from the CA Department of Education report card, shown against the state average.
At a glance
1,557Students enrolled
20:1Student–teacher ratio
38%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 9427
Grade 10379
Grade 11357
Grade 12394
Students
Hispanic · 48%739
Asian · 26%405
White · 16%247
Two or more races · 8%117
Native Hawaiian/Pacific Islander · 2%30
Black · 1%15
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
1,671’20
1,669’21
1,613’22
1,578’23
1,557’24
Location
506 North Delaware St. San Mateo
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.