We are an independent private school in San Francisco, grades TK through 8th.
We use Spanish and English to prepare students for their lives ahead: as scholars, as citizens, and as leaders.
We know that curiosity, creativity, and diversity are the essentials of education.
We promise S School students a nurturing, rigorous, and bilingual education from an experienced faculty that will prepare them for the challenges and opportunities ahead.
Our students learn how to excel in school and in life.
School Overview
Student Body
Total Students
145 students
Student Body Type
Co-ed
% Students of Color
16%
State avg.: 51%
Students by Grade

Academics and Faculty
Total Classroom Teachers
21 teachers
Student-Teacher Ratio
7:1
National avg.: 13:1
Average Class Size
16 students
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Jan. 10 / rolling
Yearly Tuition Cost
$28,685
Tuition Notes
$28,685 (TK/Kindergarten)
$30,710 (Grades 1 - 8)
% on Financial Aid
35%
Admissions Director
Cameron Story
Sports
Total Sports Offered
7 sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
1 extracurricular
ExtracurricularsExtra-curric.
Club or Organization:
School Newspaper
School Notes
- TK applicants must turn age 5 by December 1st of applying year; K applicants must turn age 5 by September 1st of applying year.
Source: Verified school update
Frequently Asked Questions
How much does Spanish Infusion School (formerly Marin Preparator cost?
Spanish Infusion School (formerly Marin Preparator's tuition is approximately $28,685 for private students.
What sports does Spanish Infusion School (formerly Marin Preparator offer?
Spanish Infusion School (formerly Marin Preparator offers 7 interscholastic sports: Baseball, Basketball, Dance, Martial Arts, Soccer, Tennis and Volleyball.
When is the application deadline for Spanish Infusion School (formerly Marin Preparator?
The application deadline for Spanish Infusion School (formerly Marin Preparator is Jan. 10 / rolling (applications are due on Jan. 10 but additional applications are reviewed year-round as space permits ).
In what neighborhood is Spanish Infusion School (formerly Marin Preparator located?
Spanish Infusion School (formerly Marin Preparator is located in the The Castro neighborhood of San Francisco, CA.
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