Mill Valley, CA · K–11
Last verified August 20, 2026
305 Montford Ave, 94941 · (415) 388-8408
Enrollment
185
Student:teacher
7:1
Published tuition
$26,073–$49,732
Application fee
$60
Auto-sourced profile. These details were collected from the school's own website and may be out of date — always confirm tuition with the admissions office. Something wrong? Suggest a fix.
Tuition by division
We don't have a grade-by-grade tuition breakdown for this school yet. The published range across all divisions is $26,073–$49,732. Most independent schools charge different rates for preschool, elementary, middle and upper school.
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Head of school
Andy Davies
Interim Head of School
Andy brings over 30 years of experience in humanities education, spanning grades 5 through the college level in both public and independent schools. She most recently served as Head of The Healdsburg School in Sonoma County, California.
Curriculum & special classes
Marin Horizon's curriculum is designed to nurture early childhood, build essential educational blocks in Lower School, and foster exploration and development in Middle School. Students are encouraged to think deeply, ask questions, collaborate, and take intellectual risks through hands-on projects and discussions.
Financial aid
Marin Horizon School’s Indexed Tuition program is designed to make an education possible for all families based on demonstrated financial need and the availability of funds. They use the Clarity Application to determine a family’s level of financial need.
Application fee: $60
Before & after school care
Before school
Not listed
After school
Aftercare
Cost
Not listed
Extended-care hours and rates change yearly — parents can correct these below.
Admissions
The admissions process begins with creating an online inquiry and account through Ravenna. It includes campus visits, submitting an application, parent interviews, and student visit days, with additional materials required depending on grade level. The admissions team is available to help families navigate the process.
Apply by
January 30, 2026 (for 2026-2027 school year); applications received after this date will be considered on a weekly (rolling) basis beginning in April 2026.
Acceptance rate
Not listed
Application fee
$60
What they ask for: Online inquiry and application (via Ravenna), campus visit (tour/open house), parent interview, student visit day, grade-level specific additional materials (teacher recommendations, transcripts, student essays).
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