Castilleja School, Palo Alto CA: 6-12, 424 Students

Castilleja School is a private school in Palo Alto, CA teaching grades 6-12. It reported 424 students and about 7.1 students for every teacher in the 2023-24 federal survey.

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School facts

Grades: 6-12
Students: 424
Teachers: 63
Students per teacher: 7.1
Student body: All-girls
Program: Regular
Affiliation: Nonsectarian
Go on to a 4-year college: 97%
Setting: City

These are the numbers the school gave the U.S. Department of Education for the 2023-24 school year, published in July 2026. The survey counts students in kindergarten to grade 12, not pre-K. Enrollment and staffing move every year, so ask the school for today’s figures. Where this comes from. Something wrong? Tell us and we will fix it.

Castilleja School tuition

We have not verified a tuition figure for Castilleja School yet. Every private school sets its own price and most share it on request: ask for the full-year tuition for your child’s grade plus required fees, or look for a tuition page on the school’s website.

Other private schools nearby

School	Grades	Students	Per teacher	Affiliation	Miles
Odyssey Montessori	PreK-K	2	not reported	Nonsectarian	<1
Tru School	K-5	31	9.4	Nonsectarian	<1
Living Wisdom School of Palo Alto	K-12	71	7	Nonsectarian	<1
St. Elizabeth Seton School	PreK-8	179	12.1	Roman Catholic	<1
The VR School	1-12	630	9.3	Nonsectarian	<1
Chesterton Academy of St. James	9-12	12	2.4	Roman Catholic	2
Silicon Valley International School	PreK-12	567	6.2	Nonsectarian	2
Fusion Academy - Palo Alto	6-12	27	not reported	Nonsectarian	2

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