San Mateo Union High School District
School District · San Mateo, California
Avg Rating
7.3
out of 10
Schools
7
7 high
Per-Pupil Spending
$24,541
Student-Teacher Ratio
19.4:1
Avg Rating
7.3
out of 10
Schools
7
7 high
Per-Pupil Spending
$24,541
Student-Teacher Ratio
19.4:1
Evaluating San Mateo Union High?
A district shares budget, policy, and attendance zones across its schools — use this page to judge San Mateo Union High as a whole, then compare how its individual schools differ.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Burlingame High
Burlingame · High. Compare this profile against district averages, level fit, and attendance-zone reality below.
Aragon High
San Mateo · High. Compare this profile against district averages, level fit, and attendance-zone reality below.
Mills High
Millbrae · High. Compare this profile against district averages, level fit, and attendance-zone reality below.
How this district compares
California rank
#149 of 713
districts by avg. composite
Vs. state average
+1.0
above California avg
Per-pupil spending
$24,541
+$6,894 vs California median
District size
8,841 students
Much larger than California median
The short answer
San Mateo Union High ranks #149 of 713 California districts by overall school rating. San Mateo Union High's schools with real test data average 7.3/10 across 7 schools. Its top-rated schools are Burlingame High (8.5/10), Aragon High (7.9/10), and Mills High (7.9/10). Schools with estimated (proxy) scores are excluded from this ranking.
Top-Rated Schools in San Mateo Union High
Ranked by MySchoolScout composite rating using only schools with real test data (7 of 7). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Burlingame High | 8.5 / 10 |
| 2 | Aragon High | 7.9 / 10 |
| 3 | Mills High | 7.9 / 10 |
| 4 | San Mateo High | 7.6 / 10 |
| 5 | Hillsdale High | 7.3 / 10 |
| 6 | Capuchino High | 6.6 / 10 |
| 7 | Peninsula High (continuation) | 5.3 / 10 |
See all 7 schools — including those with estimated data — in the full directory below. How we rate schools.
About San Mateo Union High
San Mateo Union High is a San Mateo, California school district serving 7 schools. The district educates 8,841 students with a student-teacher ratio of 19.4:1. The district invests $24,541 per student annually.
With an average rating of 7.3/10, San Mateo Union High is among the strongest-performing districts in the state.
The highest-rated school in the district is Burlingame High, which has a composite score of 8.5/10.
In standardized testing, San Mateo Union High students show an average math proficiency of 57.0% and ELA proficiency of 69.8%.
The district includes 7 high schools.
District Map
Schools in San Mateo Union High, colored by MySchoolScout rank. Click a pin for details.
District Average Test Scores
Average proficiency across all schools in San Mateo Union High with test data.
Schools in San Mateo Union High
7 schoolsDistrict Details
- State
- California
- City
- San Mateo
- Total Enrollment
- 8,841
- Teachers (FTE)
- 456
- Child Poverty Rate
- 0.1%
- Data Year
- 2023
Frequently Asked Questions
How many schools are in San Mateo Union High?
San Mateo Union High has 7 schools in total — 7 high schools. You can explore each school's ratings and details on this page.
What is the average rating for San Mateo Union High?
The average composite rating for San Mateo Union High is 7.3/10. This score is calculated from the individual ratings of all schools with academic data in the district.
What is the per-pupil spending in San Mateo Union High?
San Mateo Union High spends $24,541 per student per year.
What is the student-teacher ratio in San Mateo Union High?
The average student-teacher ratio in San Mateo Union High is 19.4:1.
What is the top-rated school in San Mateo Union High?
Burlingame High is the highest-rated school in San Mateo Union High with a composite score of 8.5/10.
What are the test scores in San Mateo Union High?
Across schools in San Mateo Union High with test data, the average math proficiency is 57.0% and the average ELA (reading/writing) proficiency is 69.8%. These figures represent the percentage of students meeting or exceeding grade-level standards.
How does San Mateo Union High compare to other districts in California?
San Mateo Union High has an average school rating of 7.3/10 across 7 schools. Families can compare this to other districts in California by visiting individual district pages. Factors like school size, available programs, and community demographics also play a role in choosing the right fit.
How does MySchoolScout rate schools?
MySchoolScout ratings blend student growth, poverty-adjusted academic performance, and learning environment — plus college readiness for high schools. Weights vary by school level, and equity data is shown for context without being factored into the score. Learn more about our rating system on our methodology page.
District Averages
- Overall Rating
- 7.3/10
- Math Proficiency
- 57.0%
- ELA Proficiency
- 69.8%
Resources
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateOther School Districts in CA
Compare San Mateo Union High with neighboring districts in the state.
- Los Angeles Unified (785)
- San Diego Unified (175)
- San Francisco Unified (113)
- Fresno Unified (101)
- Long Beach Unified (82)
- Oakland Unified (82)
- San Bernardino City Unified (76)
- Sacramento City Unified (73)
- San Juan Unified (68)
- Elk Grove Unified (67)
- Garden Grove Unified (66)
- Capistrano Unified (59)
- West Contra Costa Unified (54)
- Stockton Unified (54)
- Corona-norco Unified (53)
- Mt. Diablo Unified (52)
- Santa Ana Unified (52)
- Clovis Unified (50)
- Lodi Unified (49)
- Riverside Unified (49)
- Bakersfield City (45)
- Irvine Unified (45)
- Fontana Unified (44)
- Fremont Unified (44)
Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.
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