Private school
Castilleja School
Palo Alto · 6–12 · 422 students, not counting pre-K (2021-22) · 7 students per teacher (2021-22)
A single-sex 6–12 private school in Palo Alto.
California private schools don’t take the state tests, so there are no results we can fairly compare. We don’t score or rank private schools.
School fit
What would my child’s experience be like?
- Survey classification
- Nonsectarian (Regular) NCES survey 2021-22
- Affiliation
- Nonsectarian NCES survey 2021-22
- Reported school day
- 6.0 hours NCES survey 2021-22 · confirm current hours
Use the dated record as a starting point, then ask the school about the grades your child would attend.
- Which courses and career pathways are running this year, and who can enroll?
- How do counselors help students plan for college, training or work?
Do students finish prepared, and where do they go?
A closer look · UC’s own records
University of California
- Applied
- 42
- Admitted
- 33
- Enrolled
- under 3
By campus · fall 2025
- UCLAApplied 41 · Admitted 5 · Enrolled under 3
- UC BerkeleyApplied 39 · Admitted 9 · Enrolled under 3
- UC San DiegoApplied 38 · Admitted 7 · Enrolled under 3
- UC Santa BarbaraApplied 36 · Admitted 14 · Enrolled under 3
- UC DavisApplied 33 · Admitted 12 · Enrolled under 3
- UC Santa CruzApplied 30 · Admitted 20 · Enrolled under 3
- UC IrvineApplied 28 · Admitted 11 · Enrolled under 3
- UC RiversideApplied 10 · Admitted 8 · Enrolled under 3
- UC MercedApplied 6 · Admitted 6 · Enrolled under 3
Each fall since 2016
- Fall 2025Applied 42 · Admitted 33 · Enrolled under 3
- Fall 2024Applied 47 · Admitted 25 · Enrolled 6
- Fall 2023Applied 47 · Admitted 31 · Enrolled 8
- Fall 2022Applied 30 · Admitted 21 · Enrolled 3
- Fall 2021Applied 45 · Admitted 23 · Enrolled 5
- Fall 2020Applied 35 · Admitted 23 · Enrolled under 3
- Fall 2019Applied 45 · Admitted 32 · Enrolled 6
- Fall 2018Applied 41 · Admitted 32 · Enrolled 8
- Fall 2017Applied 43 · Admitted 35 · Enrolled 4
- Fall 2016Applied 44 · Admitted 34 · Enrolled 7
Admissions and cost
Could this school work for our family?
- Approach and support
- How would teaching, student support and school expectations work for my child?
- Tuition and financial aid
- What is the total annual cost, including fees, and how does financial aid work?
- Admissions and availability
- Which grades have openings, and what are the application steps and dates?
More questions for admissions
- Which tests do students take, and how do they do?Private schools don’t take California’s state tests. Ask which tests they give and for the school’s overall results.
- How do you teach students at different levels?Ask how they challenge students who are ahead and help students who need more support.
- How many students leave each year, and why?If many families leave, ask what they told the school.
- Where do students go after they finish here?Ask for the list of schools or colleges recent graduates went on to.
- What is the full cost, and what financial aid is there?Ask about every fee on top of tuition, and how aid is decided.
- Who accredits the school?Accreditation means an outside group reviewed the school. Ask which group, and when it last visited.
Location and visiting
Get directions ↗Directory location · Explore nearby schools on the map. Confirm address eligibility and visit arrangements with the school.
Call (650) 470-7702 to ask about a visit.
Public schools nearby
Public schools carry their own ratings; we don’t rank this private school against them.
- Addison Elementary0.5 mi
- Walter Hays Elementary0.5 mi
- Duveneck Elementary1.2 mi
- Palo Alto High0.4 mi
- Menlo-Atherton High1.8 mi
- Oxford Day Academy1.9 mi · Charter school. Check how it admits students.
Each percentile compares a school with California schools at its own level.
The record
From the federal private-school survey
We have no state test results, attendance, discipline, tuition or admissions figures for this school.
Common questions
Why doesn't Castilleja School have a Scope Score?
Private schools don't take California's state tests (CAASPP), so there is no state testing data for Castilleja School to score. SchoolScope gives private schools no Scope Score, performance band, or rank.
Where do Castilleja School's directory facts come from?
The enrollment, grade-span, and student–teacher figures shown here, when present, come from the NCES Private School Universe Survey 2021-22. That survey-period record is not a current enrollment or inspection report.
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Data source: NCES Private School Universe Survey · Explore all schools