Very Good
#232 of 1,787 private schools in CA
Top 13% of private schools
Castilleja School
High School
1310 BRYANT ST, Palo Alto, CA 94301
Enrollment
422
Student-Teacher
7.3:1
Score
7.5
Grades
6th – 12th
Enrollment
422
Student-Teacher
7.3:1
Score
7.5
Grades
6th – 12th
Data vintage
2021-22
Data vintage2021-22
How this school compares
California private schools
#232 of 1,787
In Palo Alto
#7 of 18
public schools
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Castilleja School
High School in Palo Alto · grades 6th – 12th. Start here, then compare fit against nearby and district options.
Palo Alto High
0.3 mi away. Use as a geographic alternative in the same move search.
Odyssey Montessori
0.3 mi away. Use as a geographic alternative in the same move search.
About Castilleja School
Castilleja School is a private high school in Palo Alto, CA. Castilleja School serves approximately 422 students, and covers grades 6th-12th, and has a 7.3:1 student-teacher ratio. Castilleja School has a current MySchoolScout rating of 7.5 out of 10 and ranks #232 of 1,787 private schools in CA.
- This school 7.5 · Very Good
- CA avg 6.5
What Parents Should Know
At 7.3:1 students to teachers, Castilleja School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Castilleja School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.
Compare to Public Schools
BetaHow Castilleja School compares to 6 public schools serving similar grades in Palo Alto, CA
Student Demographics
Nearby High Schools
| School | Rating |
|---|---|
| Castilleja School (this school) | 7.5 |
| Palo Alto High | 8.7 |
| Frank S. Greene Jr. Middle | 9.2 |
| Packard Children's Hospital/Stanford | — |
| Jane Lathrop Stanford Middle | 9.4 |
| Henry M. Gunn High | 9.2 |
| Ellen Fletcher Middle | 9.4 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
PreliminaryWhat 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.
Data Unavailable
View data sources
Score basis: Private school model
Data coverage: 80% of scoring components had data
Components scored: 4 of 5
Ranking pool: Private schools in CA
Test Scores
Test score data not yet available for this school.
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
1310 BRYANT ST, Palo Alto, CA 94301
Nearby Alternatives
Families considering Castilleja School may also want to explore other high schools in the area. Frank S. Greene Jr. Middle (rated 9.2/10, 0.9 miles away), which scores notably higher. Another option is Palo Alto High (rated 8.7/10, 0.3 miles away), which scores notably higher. Additionally, Walter Hays Elementary (rated 8.5/10, 0.5 miles away), which scores slightly higher. For more schools in Palo Alto, see our Palo Alto schools guide .
Nearby Schools
20 within 1.1 mi| School | Distance | Rating |
|---|---|---|
| Castilleja School Palo Alto | 0.0 mi | — |
| Palo Alto High Palo Alto | 0.3 mi | 8.7 |
| ODYSSEY MONTESSORI Palo Alto | 0.3 mi | — |
| GUIDEPOST MONTESSORI Palo Alto | 0.3 mi | — |
| Addison Elementary Palo Alto | 0.4 mi | 7.8 |
| TRU SCHOOL Palo Alto | 0.5 mi | 5.8 |
| Walter Hays Elementary Palo Alto | 0.5 mi | 8.5 |
| Tru Palo Alto | 0.7 mi | — |
| St. Elizabeth Seton Palo Alto | 0.7 mi | — |
| ST ELIZABETH SETON SCHOOL Palo Alto | 0.8 mi | 5.1 |
| LIVING WISDOM SCHOOL OF PALO ALTO Palo Alto | 0.9 mi | 6.3 |
| Living Wisdom School of Palo Alto Palo Alto | 0.9 mi | — |
| SYNAPSE SCHOOL Palo Alto | 0.8 mi | 8.1 |
| CASA DEI BAMBINI SCHOOL Palo Alto | 0.9 mi | — |
| Lydian Academy Palo Alto | 1.0 mi | — |
| Frank S. Greene Jr. Middle Palo Alto | 0.9 mi | 9.2 |
| BBS Palo Alto | 1.2 mi | — |
| Escondido Elementary Stanford | 1.3 mi | 8.4 |
| CORNERSTONE LEARNING FOUNDATION Palo Alto | 1.1 mi | 5.7 |
| STRATFORD SCHOOL - PALO ALTO Palo Alto | 1.1 mi | 7.3 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94301 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$235,529
Median Home Value
$2,000,001
Median Rent
$3,290/mo
Population
17,126
College Educated
83.3%
Homeownership
51.6%
Avg Commute
23.7 min
Poverty Rate
4.2%
Median Age
45.4
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Academy (The)- SF @McAteer San Francisco, CA | 7.5 |
| Da Vinci Charter Academy Davis, CA | 7.5 |
| EASTSIDE COLLEGE PREPARATORY SCHOOL East Palo Alto, CA | 7.5 |
| Ednovate - Legacy College Prep. Santa Ana, CA | 7.5 |
| KIPP Navigate College Prep San Jose, CA | 7.5 |
| Los Angeles High School of the Arts Los Angeles, CA | 7.5 |
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 422 students.
What is the student-teacher ratio at Castilleja School?
The student-teacher ratio at Castilleja School is 7.3:1. 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 ranks #232 of 1,787 private schools in CA.
What is Castilleja School's MySchoolScout rating?
Castilleja School has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Castilleja School a private school?
Yes, Castilleja School is a private all-girls school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is Castilleja School a religious school?
No, Castilleja School is a nonsectarian (non-religious) private school.
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Neighborhood Context
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Quick Facts NCES PSS (SY 2021-22)
- Grades
- 6th – 12th
- Enrollment
- 422
- Gender Split
- 0% M / 100% F
- Student-Teacher Ratio
- 7.3:1
- Teachers (FTE)
- 58
- Type
- private
- Coed Status
- all-girls
- Affiliation
- Nonsectarian
- School Day
- 6 hours
- Days Per Year
- 180 days
- Setting
- Small City
- County
- Santa Clara County
- Phone
- (650) 470-7702
Resources & Links
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