Palo Alto, CA · Founded 1907 · 9–12 · Nonsectarian independent girls' school; CAIS and NCGS member
Last verified August 19, 2026
1310 Bryant St., 94301 · (650) 470-7702
Enrollment
422
Student:teacher
7:1
Published tuition
$67,750
Application fee
$60
Tuition by division
We don't have a grade-by-grade tuition breakdown for this school yet. The published range across all divisions is $67,750. Most independent schools charge different rates for preschool, elementary, middle and upper school.
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Head of school
Dr. Betty Noel-Pierre
Head of School since 2025
Dr. Betty Noel-Pierre became Castilleja's eighth Head of School in summer 2025.
Curriculum & special classes
A college-preparatory curriculum for girls in grades 6-12 emphasizing rigorous academics, experiential learning, and leadership development.
Financial aid
Over $4 million in annual tuition assistance, with about 1 in 5 students receiving awards.
Application fee: $60
Before & after school care
No extended-care hours or rates on file yet. This is one of the biggest surprise costs for working parents — if you know what before- and after-care runs here, add it below.
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Admissions
We don't have deadlines, requirements or an acceptance rate for this school yet. Most independent schools post an admissions timeline in the fall — the school's website is linked below.
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