Excellent
#701 of 9,533 schools in CA
Top 7% in state
Aragon High
High School · San Mateo Union High
900 Alameda de las Pulgas, San Mateo, CA 94402
Enrollment
1,686
Student-Teacher
21.6:1
Score
8.5
Grades
9th – 12th
Enrollment
1,686
Student-Teacher
21.6:1
Score
8.5
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In San Mateo
#4 of 19
public schools
California high schools
#110 of 1,892
In district
#2 of 7
San Mateo Union High
Academic growth
9.1 / 10
Exceptional
About Aragon High
Aragon High is a public high school in San Mateo, CA, part of the San Mateo Union High. The school serves approximately 1,686 students in grades 9th – 12th with a student-teacher ratio of 21.6:1. It holds a MySchoolScout rating of 8.5/10, placing it in the 92.7th percentile among CA schools — an above average rating overall.
Students demonstrate 55% proficiency in math, 23 points above the state average and 78% in reading/language arts, 26 points above the state average. The school scores particularly well in student growth (9.1/10). Located in a neighborhood with a median household income of $179,683, where 69% of adults hold a bachelor's degree or higher.
The school is situated in a midsize city setting.
What Parents Should Know
The student-teacher ratio at Aragon High is 21.6:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Aragon High — Students at Aragon High score 68% proficient, which is above what's typical for similar communities (expected: 67%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
14.8%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 6 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.1/10.
How Aragon High Compares
See how Aragon High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 51% (2019) to 56.87% (2024). Reading/ELA proficiency has remained stable from 77% (2019) to 78.2% (2024).
Location
900 Alameda de las Pulgas, San Mateo, CA 94402
Nearby Alternatives
Families considering Aragon High may also want to explore other high schools in the area. FUSION ACADEMY - SAN MATEO (rated 7.2/10, 0.6 miles away), a more accessible option. Additionally, JUNIPERO SERRA HIGH SCHOOL (rated 5.3/10, 0.8 miles away), a more accessible option. For more schools in San Mateo, see our San Mateo schools guide .
Nearby Schools
20 within 1.5 mi| School | Distance | Rating |
|---|---|---|
| Baywood Elementary San Mateo | 0.2 mi | 5.1 |
| TULANE MONTESSORI CHILDREN'S HOUSE San Mateo | 0.4 mi | — |
| Borel Middle San Mateo | 0.5 mi | 5.6 |
| FUSION ACADEMY - SAN MATEO San Mateo | 0.6 mi | 7.2 |
| Fusion Academy San Mateo San Mateo | 0.6 mi | — |
| Crystal Springs Uplands School Hillsborough | 0.7 mi | — |
| The Carey School San Mateo | 0.7 mi | — |
| St. Matthew Catholic San Mateo | 0.7 mi | — |
| THE CAREY SCHOOL San Mateo | 0.7 mi | 8.7 |
| CENTENNIAL MONTESSORI SCHOOL San Mateo | 0.7 mi | 7.4 |
| JUNIPERO SERRA HIGH SCHOOL San Mateo | 0.8 mi | 5.3 |
| South Hillsborough Hillsborough | 0.9 mi | 9.4 |
| Episcopal Day School of St. Matthew San Mateo | 1.1 mi | — |
| EPISCOPAL DAY SCHOOL OF ST. MATTHEW San Mateo | 1.1 mi | 8.0 |
| Meadow Heights Elementary San Mateo | 1.1 mi | 5.2 |
| UP ACADEMY San Mateo | 1.0 mi | — |
| UP ACADEMY, INC. San Mateo | 1.0 mi | — |
| COMPASS HIGH SCHOOL San Mateo | 1.0 mi | — |
| Sunnybrae Elementary San Mateo | 1.2 mi | 5.0 |
| San Mateo Park Elementary San Mateo | 1.5 mi | 3.4 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94402 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$179,683
Median Home Value
$2,000,001
Median Rent
$3,476/mo
Population
25,498
College Educated
69.3%
Homeownership
59.3%
Avg Commute
28 min
Poverty Rate
6.1%
Median Age
40.6
Community Profile
The community surrounding Aragon High has a median household income of $179,683. It is a well-educated community where 69% of adults hold a bachelor's degree or higher. The median home value in the area is $2,000,001, with a median rent of $3,476/month. The local poverty rate of 6.1% is relatively low. The average commute for residents is 28 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Colton High Colton, CA | 8.5 |
| Dos Pueblos Senior High Goleta, CA | 8.5 |
| Escondido High Escondido, CA | 8.5 |
| Galileo High San Francisco, CA | 8.5 |
| Los Angeles Center for Enriched Studies Los Angeles, CA | 8.5 |
| OCSA Santa Ana, CA | 8.5 |
Frequently Asked Questions
Common questions about Aragon High
What grades does Aragon High serve?
Aragon High serves students in grades 9th through 12th.
How many students attend Aragon High?
Aragon High has an enrollment of approximately 1,686 students.
What is the student-teacher ratio at Aragon High?
The student-teacher ratio at Aragon High is 21.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Aragon High rank in CA?
Aragon High is ranked #701 out of 9,533 schools in CA.
What is Aragon High's MySchoolScout rating?
Aragon High has a composite rating of 8.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Aragon High?
Based on the most recent state assessment data, Aragon High has 54.9% math proficiency and 77.8% reading/ELA proficiency.
Is Aragon High a charter school?
No, Aragon High is not a charter school. It is a traditional public school operated by the local school district.
Is Aragon High a Title I school?
No, Aragon High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Aragon High?
14.8% of students at Aragon High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- Walk Score
- 27 Car-Dependent
- Transit Score
- 33 Some Transit
- Bike Score
- 32 Somewhat Bikeable
- City Safety
- High (2,131/100K)
Powered by 
FBI UCR 2024. City-level (San Mateo). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,686
- Student-Teacher Ratio
- 21.6:1
- Teachers (FTE)
- 78
- Free/Reduced Lunch
- 14.8%
- Type
- regular
- Setting
- Midsize City
- County
- San Mateo County
- Phone
- (650) 558-2999
- Data Year
- 2023–2024
Resources & Links
District
San Mateo Union High- District Enrollment
- 8,841
- Schools in District
- 7
- Per-Pupil Spending
- $24,541
- District Rank
- #2 of 7
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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