Quick Stats (2021-22)

  • Top Ranked CA School
  • Grades: 6-12
  • Students: 430 students
  • Yearly Tuition: $49,900
  • Average class size: 15 students
  • Application Deadline: Jan. 9

Top Rankings

Castilleja School ranks among the top 20% of private schools in California for:

Category
Attribute
Sports offered
School History

School Overview

Grades Offered
Grades 6-12
Year Founded
1907

Student Body

Total Students
430 students
Student Body Type
% Students of Color
40%
State avg.: 48%
Students by Grade
Castilleja School Student By Grade

Academics and Faculty

Total Classroom Teachers
65 teachers
Student : Teacher Ratio
7:1
National avg.: 13:1
% Faculty w/Advanced Degree
81%
Average Class Size
15 students
Number of AP Courses
15 courses
List of Courses Offered
Average SAT score
1430
Average ACT score
32
Matriculation DataMatric. Data

Tuition and Acceptance Rate

Admission Deadline
Jan. 9
Yearly Tuition Cost
Tuition Notes
$3.3 million in Tuition Assistance per year to 22% of student body.
% on Financial Aid
22%
Admissions Director
Jill Lee
Admissions Associate
mnegron@castilleja.org
Endowment Size
$55 million

Sports

School Notes

  • Founded in 1907 by educator Mary Lockey, Castilleja is the only non-sectarian all-girls middle and high school in the San Francisco Bay Area. More than 100 years since its founding, Castilleja remains true to its mission to give each young woman an "educated heart." Castilleja also remains true to the 5 C's - conscience, courtesy, character, courage, and charity - which set the standard for a responsible and inclusive community.
  • Castilleja's pedagogical approach is shaped both by tradition and current research that affirm the significant personal and intellectual advantages of all-girls education. While emphasis is placed on academic development, Castilleja is just as committed to educating the whole person and to developing commpassionate and contributing global citizens.
  • The pursuit of our motto, "Women Learning, Women Leading," has led us to infuse our curriculum and progams with relevant, real-world experiences, which develop in each student the skills and self-confidence to reach her full potential. With the support of our extraordinary faculty and staff, we are dedicated to excellence in educating young women to lead in a changing world.

School Reviews

5  
Fun athletic energetic school with good teachers
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Quick Stats (2021-22)

  • Top Ranked CA School
  • Grades: 6-12
  • Students: 430 students
  • Yearly Tuition: $49,900
  • Average class size: 15 students
  • Application Deadline: Jan. 9

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Did You Know?

The average private school tuition in Palo Alto, CA is $30,408 for elementary schools (read more about average private school tuition across the country).

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