Very Good
#232 of 1,787 private schools in CA
Top 13% of private schools
Castilleja School
High School · Palo Alto, CA
A private high school in Palo Alto, CA serving grades 6th – 12th.
1310 BRYANT ST, Palo Alto, CA 94301
- 7.3:1 student-teacher ratio
Academics
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 not available
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
Most recent published year. School vs. CA average.
Test score data not yet available for this school.
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 rateThe neighborhood
Where Castilleja School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the San Jose map →
Getting around & local context
- Walk 82Very Walkable
- Transit 45Some Transit
- Bike 100Biker’s Paradise
- City Safety: High3,256/100K
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FBI Uniform Crime Reporting · 2024 · city context (Palo Alto), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$235,529
Median home value
$2,000,001
Median rent
$3,290/mo
College educated
83.3%
Homeownership
51.6%
Poverty rate
4.2%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94301; this is area context, not an attendance boundary.
Programs & students
Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)
Source: NCES Private School Universe Survey (PSS)
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Castilleja SchoolPrivate · tuition | Not rated | 6–12 | 0.0 mi | 416 | Compare → |
| Palo Alto HighEnrollment path unverified | 8.7 | 9–12 | 0.3 mi | 1,932 | Compare → |
| Living Wisdom School of Palo AltoPrivate · tuition | Not rated | K–12 | 0.9 mi | 76 | Compare → |
| Living Wisdom School of Palo AltoPrivate · tuition | 6.3private | K–12 | 0.9 mi | 72 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Castilleja School is listed in Palo Alto, CA; verify the current enrollment path directly.
About Castilleja School
Castilleja School is a private high school in Palo Alto, CA, serving approximately 422 students in grades 6th-12th with a 7.3:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #232 of 1,787 private schools in CA.
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.
School factsNCES Private School Universe Survey (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
- Area population (ZIP 94301)
- 17,126
- Area average commute
- 23.7 min
- Area median age
- 45.4
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
- Vintage not available. Do not use this measure alone.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 94301; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22
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