Top Rankings
San Mateo Union High School District ranks among the top 20% of public school district in California for:
Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 20%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2026-27 school year, there are 8 public high schools serving 8,736 students in San Mateo Union High School District. This district's average high testing ranking is 10/10, which is in the top 10% of public high schools in California.
Public High Schools in San Mateo Union High School District have an average math proficiency score of 48% (versus the California public high school average of 28%), and reading proficiency score of 76% (versus the 51% statewide average).
Public High School in San Mateo Union High School District have a Graduation Rate of 91%, which is more than the California average of 86%.
The school with highest graduation rate is Aragon High School, with 98% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 76% of the student body (majority Hispanic), which is less than the California public high school average of 79% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
8 Schools
2,790 Schools
# Students
8,736 Students
2,122,151 Students
# Teachers
442 Teachers
101,015 Teachers
Student-Teacher Ratio
20:1
20:1
Student By Grade
District Rank
San Mateo Union High School District, which is ranked #190 of all 1,903 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 91% has decreased from 92% over five school years.
Overall District Rank
#171 out of 1932 school districts
(Top 10%)
(Top 10%)
Showing 2012–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
49%
34%
Showing 2012–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
76%
47%
Showing 2011–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
51%
29%
Graduation Rate
91%
86.2%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(2022-23)16.1%
27.7%
Students by Ethnicity:
Diversity Score
0.73
0.63
Showing 2014–2023. Full 36-year historical data available below ↓
% American Indian
n/a
1%
% Asian
29%
12%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hispanic
35%
56%
Showing 2014–2023. Full 36-year historical data available below ↓
% Black
1%
5%
Showing 2014–2023. Full 36-year historical data available below ↓
% White
24%
21%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hawaiian
2%
n/a
% Two or more races
9%
5%
Showing 2014–2023. Full 15-year historical data available below ↓
All Ethnic Groups
District Revenue and Spending
The revenue/student of $35,429 is higher than the state median of $26,022. The school district revenue/student has grown by 14% over four school years.
The school district's spending/student of $34,933 is higher than the state median of $22,604. The school district spending/student has grown by 11% over four school years.
Total Revenue
$310 MM
$150,628 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Spending
$305 MM
$130,845 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Revenue / Student
$35,429
$26,022
Showing 2014–2023. Full 34-year historical data available below ↓
Spending / Student
$34,933
$22,604
Showing 2014–2023. Full 34-year historical data available below ↓
Best San Mateo Union High School District Public High Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Burlingame High School
(Math: 65% | Reading: 85%)
Rank:
Rank:
10/
Top 10%10
1 Mangini Way
Burlingame, CA 94010
(650) 558-2899
Burlingame, CA 94010
(650) 558-2899
Gr: 9-12 | 1,583 students Student-teacher ratio: 20:1 Minority enrollment: 59%
Rank: #22.
Aragon High School
(Math: 61% | Reading: 86%)
Rank:
Rank:
10/
Top 10%10
900 Alameda De Las Pulgas
San Mateo, CA 94402
(650) 558-2999
San Mateo, CA 94402
(650) 558-2999
Gr: 9-12 | 1,658 students Student-teacher ratio: 22:1 Minority enrollment: 74%
Rank: #33.
Mills High School
(Math: 57% | Reading: 80-84%)
Rank:
Rank:
10/
Top 10%10
400 Murchison Dr.
Millbrae, CA 94030
(650) 558-2599
Millbrae, CA 94030
(650) 558-2599
Gr: 9-12 | 1,115 students Student-teacher ratio: 21:1 Minority enrollment: 89%
Rank: #44.
Hillsdale High School
(Math: 39% | Reading: 71%)
Rank:
Rank:
8/
Top 30%10
3115 Del Monte St.
San Mateo, CA 94403
(650) 558-2699
San Mateo, CA 94403
(650) 558-2699
Gr: 9-12 | 1,585 students Student-teacher ratio: 19:1 Minority enrollment: 69%
Rank: #55.
San Mateo High School
(Math: 38% | Reading: 68%)
Rank:
Rank:
8/
Top 30%10
506 North Delaware St.
San Mateo, CA 94401
(650) 558-2399
San Mateo, CA 94401
(650) 558-2399
Gr: 9-12 | 1,557 students Student-teacher ratio: 19:1 Minority enrollment: 84%
Rank: #66.
Capuchino High School
(Math: 33% | Reading: 68%)
Rank:
Rank:
8/
Top 30%10
1501 Magnolia Ave.
San Bruno, CA 94066
(650) 558-2799
San Bruno, CA 94066
(650) 558-2799
Gr: 9-12 | 1,061 students Student-teacher ratio: 19:1 Minority enrollment: 83%
Rank: #77.
Peninsula High (Continuation School)
Alternative School
(Math: ≤10% | Reading: 11-19%)
Rank:
Rank:
1/
Bottom 50%10
860 Hinckley Rd.
Burlingame, CA 94010
(650) 558-2402
Burlingame, CA 94010
(650) 558-2402
Gr: 9-12 | 123 students Student-teacher ratio: 14:1 Minority enrollment: 94%
Rank: n/an/a
The Bridge Academy
Alternative School
798 East Poplar Ave
San Mateo, CA 94401
(650) 558-2271
San Mateo, CA 94401
(650) 558-2271
Gr: 10-12 | 54 students Student-teacher ratio: 11:1
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