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Very Good

#1812 of 9,539 schools in CA

Top 19% 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

7.9

Grades

9th – 12th

Data vintage2022-23

How this school compares

California schools

#1,812 of 9,539

In San Mateo

#6 of 19

public schools

In district

#2 of 7

San Mateo Union High

School environment

9.4 / 10

Excellent

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Aragon High

7.9/10

High School in San Mateo · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Baywood Elementary

6.5/10

0.2 mi away. Use as a geographic alternative in the same move search.

Tulane Montessori Children's House

Nearby

0.4 mi away. Use as a geographic alternative in the same move search.

About Aragon High

Aragon High is a public high school in San Mateo, CA, part of San Mateo Union High. Aragon High serves approximately 1,686 students, and covers grades 9th-12th, and has a 21.6:1 student-teacher ratio. Aragon High has a current MySchoolScout rating of 7.9 out of 10 and ranks #1,812 of 9,539 schools in CA.

Structured state assessment records for Aragon High show 65% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.6 pts above district
  • This school 7.9 · Very Good
  • District avg 7.3
  • CA avg 6.5

What Parents Should Know

Aragon High runs 21.6:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress6.7Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data12
Annual Change-1.23 pts/yr
Data Period2009–2024
TrendDeclining
Academics8.3Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency56.9% (2024 CAASPP)
Reading/ELA Proficiency78.2% (2024 CAASPP)
Math vs. State Avg+28.9 pts
Reading vs. State Avg+22.3 pts
Overall Proficiency68% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)66% (model expectation from 2024 CAASPP)
vs. Expected+1.5 pts
Adjusted Percentile74th
College Readiness7.4Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate96%
AP Participation22.1%
IB ProgramNo
Resources & Environment9.4Excellent20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio21.6:1
Per-Pupil Spending$24,541
Chronic Absenteeism9.6%

Aragon High — Students at Aragon High score 68% proficient, which is above what's typical for similar communities (expected: 66%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

14.8%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 64.8% (multi-year average, 2009-2024)
School
State
31.8% (2024 CAASPP)
ELA Proficiency 80.3% (multi-year average, 2009-2024)
School
State
51.5% (2024 CAASPP)

Based on 26 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
78%
ELA
82%
2010
Math
77%
ELA
80%
2011
Math
79%
ELA
80%
2012
Math
77%
ELA
80%
2013
Math
79%
ELA
77%
2014
Math
61%
ELA
86%
2015
Math
59%
ELA
85%
2016
Math
63%
ELA
84%
2017
Math
54%
ELA
79%
2018
Math
51%
ELA
77%
2019
Math
51%
ELA
77%
2024
Math
56.9%
ELA
78.2%

Source: EdFacts (NCES) and state assessment data. Growth score: 6.7/10.

How Aragon High Compares

See how Aragon High performs across key quality dimensions compared to state benchmarks.

Overall Score
7.9/10
81th percentile in CA
Academic
8.3/10
Excellent
Growth
6.7/10
Average
Environment
9.4/10
Excellent
AP Courses
3
State avg: 2.6
Advanced STEM
5/5
Subjects offered

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
15%
Teaching Staff
22:1 student-teacher ratio
78 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
9.6%

Programs & Offerings

AP/IB Programs3 AP courses offered
22.1% participation·State avg: 2.6 AP courses·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

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), with a comparable rating. 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 6.5
TULANE MONTESSORI CHILDREN'S HOUSE San Mateo 0.4 mi
Borel Middle San Mateo 0.5 mi 7.9
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 8.9
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 5.8
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 3.4
San Mateo Park Elementary San Mateo 1.5 mi 3.9

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

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Benjamin Franklin Senior High Los Angeles, CA 7.9
Capistrano Valley High Mission Viejo, CA 7.9
Edward R. Roybal Learning Center Los Angeles, CA 7.9
El Toro High Lake Forest, CA 7.9
Foothill High Tustin, CA 7.9
Granada High Livermore, CA 7.9

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 ranks #1,812 of 9,539 schools in CA.

What is Aragon High's MySchoolScout rating?

Aragon High has a current MySchoolScout rating of 7.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Aragon High?

Based on loaded state assessment records, Aragon High has 65% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
27 Car-Dependent
Transit Score
33 Some Transit
Bike Score
32 Somewhat Bikeable

Powered by Walk Score

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
Chronic Absenteeism (SY 2022-23)
9.6%
4-Year Graduation
96.0%

District

San Mateo Union High
District Enrollment
8,841
Schools in District
7
Per-Pupil Spending
$24,541
District Rank
#2 of 7

How we rate schools

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