At a Glance

We are proud of who we are and what we do.

Our Students

Castilleja’s student body reflects the cultural and economic diversity of our region.

Although the majority of students live on the San Francisco Peninsula, many commute from Burlingame to the north, San Jose to the south, and East Bay communities.

Students interacting casually before school

Our challenging 6th through 12th academic program is enhanced by our global curriculum, Social and Emotional Learning (SEL) programming, and leadership opportunities at all grade levels.

Castilleja fosters leadership in the classroom and in a variety of co-curricular offerings, including athletics, clubs, community action, student government, dramatic and musical performances, peer tutoring, teaching assistantships, and internships.

Our Faculty

We are passionate about teaching young women who become intellectual partners through mentorship.

The Castilleja faculty is dedicated to the school’s mission of educating young women for a lifetime of learning and leading and have been recognized by local, state, and national organizations for their contributions to student learning.

Teacher working side-by-side with student

Our Facilities

The Castilleja campus goes well beyond classrooms and science labs.

We have studios dedicated to art, music, drama, and video production - including a new black box theatre. Additional campus features include:

Bourn Idea Lab

A state-of-the-art fabrication workshop featuring a 3D printer, a laser cutter, and more!

Awareness, Compassion and Engagement Center (ACE)

Our campus resource for leadership, diversity, and global curriculum as well as internships, community engagement, and global opportunities.

Elizabeth Hughes Chapel Theatre

Our primary performance space features an all-new sound and lighting system and control room.

Outside facade of campus building

Margarita Espinosa Library

An open space for study and extended classroom work is supported by a variety of traditional and technological resources.

Joan Z. Lonergan Fitness and Athletics Center

A multi-level facility with two full gymnasiums, cardio studio, dance studio, yoga/spin studio, and indoor climbing wall.

Anita Seipp Gallery

A 1,000 square foot art gallery that features rotating exhibitions by students and professionals.


The Numbers


students in grades 6-12



students of color



average class size



student to faculty ratio



full and part time faculty



of faculty and staff have advanced degrees



of students compete on at least one athletic team



of students receive tuition assistance



million in tuition assistance awarded each year


million endowment