Hillsdale High
PublicHighGrades 9–12
3115 Del Monte St., San Mateo, CA 94403 · (650) 558-2699 · Part of San Mateo Union High School District
Students
1,585
Students per teacher
19:1
Free or reduced lunch
25%
Setting
City
Grades
9–12
What stands out about Hillsdale High
- No state test scores published for this school yet
Location
Directions ↗
3115 Del Monte St., San Mateo
Students
Enrollment by grade
Grade 9372
Grade 10393
Grade 11409
Grade 12411
Enrollment over time
1,689’20
1,647’21
1,629’22
1,581’23
1,585’24
Down 6.2% since 2020.
Who goes here
Hispanic 38%White 31%Asian 20%Two or more races 9%Black 1%Native Hawaiian/Pacific Islander 1%American Indian/Alaska Native <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Hillsdale High.
Other schools in San Mateo Union High School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts. The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.