Excellent
#277 of 3,177 private schools in CA
Top 9% of private schools
Castilleja School
High School
1310 Bryant Street, Palo Alto, CA 94301
About Castilleja School
Castilleja School is a private high school in Palo Alto, CA 94301. The school serves approximately 416 students in grades 6th – 12th with a student-teacher ratio of 7.8:1. It holds a MySchoolScout rating of 8.8/10, placing it in the 91.3th percentile among private schools in CA — an above average rating overall.
The school scores particularly well in classroom attention (7.5/10), ranked among private schools in CA. Compared to the 6 public schools in Palo Alto, Castilleja School rates higher overall (8.8 vs 7.8 average).
Compare to Public Schools
BetaHow Castilleja School compares to 6 public schools serving similar grades in Palo Alto, CA
Nearby High Schools
| School | Rating |
|---|---|
| Castilleja School (this school) | 8.8 |
| Palo Alto High | 6.5 |
| Frank S. Greene Jr. Middle | 7.9 |
| Packard Children's Hospital/Stanford | 8.8 |
| Jane Lathrop Stanford Middle | 8.1 |
| Henry M. Gunn High | 7.6 |
| Ellen Fletcher Middle | 8.2 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
What This Rating Measures
This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.
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Score basis: Private school model
Data coverage: 45% of scoring components had data
Components scored: 2 of 5
Ranking pool: Private schools in CA
Test Scores
Test score data not yet available for this school.
Location
1310 Bryant Street, Palo Alto, CA 94301
Nearby Schools
20 within 1.1 mi| School | Distance | Rating |
|---|---|---|
| CASTILLEJA SCHOOL Palo Alto | 0.0 mi | 8.8 |
| Palo Alto High Palo Alto | 0.3 mi | 6.5 |
| ODYSSEY MONTESSORI Palo Alto | 0.3 mi | 8.8 |
| GUIDEPOST MONTESSORI Palo Alto | 0.4 mi | 8.8 |
| Addison Elementary Palo Alto | 0.5 mi | 7.4 |
| TRU SCHOOL Palo Alto | 0.5 mi | 8.8 |
| Walter Hays Elementary Palo Alto | 0.5 mi | 7.1 |
| Tru Palo Alto | 0.7 mi | 8.8 |
| St. Elizabeth Seton Palo Alto | 0.7 mi | 8.8 |
| ST ELIZABETH SETON SCHOOL Palo Alto | 0.8 mi | 8.8 |
| LIVING WISDOM SCHOOL OF PALO ALTO Palo Alto | 0.9 mi | 8.8 |
| Living Wisdom School of Palo Alto Palo Alto | 0.9 mi | 8.8 |
| SYNAPSE SCHOOL Palo Alto | 0.8 mi | 8.8 |
| CASA DEI BAMBINI SCHOOL Palo Alto | 0.9 mi | 8.8 |
| Lydian Academy Palo Alto | 1.0 mi | 8.8 |
| Frank S. Greene Jr. Middle Palo Alto | 0.9 mi | 7.9 |
| BBS Palo Alto | 1.2 mi | 8.8 |
| Escondido Elementary Stanford | 1.3 mi | 8.5 |
| CORNERSTONE LEARNING FOUNDATION Palo Alto | 1.1 mi | 8.8 |
| STRATFORD SCHOOL - PALO ALTO Palo Alto | 1.1 mi | 8.8 |
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| CASTILLEJA SCHOOL Palo Alto, CA | 8.8 |
| La Sierra High (Alternative) Fullerton, CA | 8.8 |
| NOTRE DAME HIGH SCHOOL Belmont, CA | 8.8 |
| Cesar E. Chavez Lrng Acads-Arts/Theatre/Entertain Mag San Fernando, CA | 8.9 |
| Healdsburg High Healdsburg, CA | 8.9 |
| KIPP San Jose Collegiate San Jose, CA | 8.9 |
Frequently Asked Questions
Common questions about Castilleja School
What grades does Castilleja School serve?
Castilleja School serves students in grades 6th through 12th.
How many students attend Castilleja School?
Castilleja School has an enrollment of approximately 416 students.
What is the student-teacher ratio at Castilleja School?
The student-teacher ratio at Castilleja School is 7.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Castilleja School rank in CA?
Castilleja School is ranked #277 out of 3,177 private schools in CA.
What is Castilleja School's MySchoolScout rating?
Castilleja School has a composite rating of 8.8 out of 10 on MySchoolScout. This score combines academic performance, student growth, equity, and school environment into a single score.
Is Castilleja School a private school?
Yes, Castilleja School is a private coeducational school. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
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Quick Facts NCES PSS (SY 2024-25)
- Grades
- 6th – 12th
- Enrollment
- 416
- Student-Teacher Ratio
- 7.8:1
- Teachers (FTE)
- 54
- Type
- private
- Coed Status
- coed
- County
- Santa Clara
- Phone
- (650) 328-3160
- Data Year
- 2025–2026
Resources & Links
How We Rate Schools
Our ratings combine academic performance, growth, equity, and school environment into a single 1-10 score using publicly available data.
Read our methodology