Very Good
#237 of 1,787 private schools in CA
Top 13% of private schools
Marin Horizon School
Elementary School · Mill Valley, CA
A private elementary school in Mill Valley, CA serving grades Pre-K – 8th.
305 MONTFORD AVE, Mill Valley, CA 94941
- 6.6:1 student-teacher ratio
Academics
PreliminaryWhat this rating measures
This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.
Data not available
View data sources
Score basis: Private school model
Data coverage: 80% of scoring components had data
Components scored: 4 of 5
Ranking pool: Private schools in CA
Test scores
Most recent published year. School vs. CA average.
Test score data not yet available for this school.
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Marin Horizon School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the San Francisco Bay Area map →
Getting around & local context
- Walk 66Somewhat Walkable
- Bike 42Somewhat Bikeable
- City Safety: Elevated1,120/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Mill Valley), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$210,217
Median home value
$1,990,100
Median rent
$2,949/mo
College educated
76.9%
Homeownership
66.6%
Poverty rate
5.4%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94941; this is area context, not an attendance boundary.
Programs & students
Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)
Source: NCES Private School Universe Survey (PSS)
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Marin Horizon SchoolPrivate · tuition | Not rated | K–8 | 0.0 mi | 169 | Compare → |
| Park ElementaryEnrollment path unverified | 8.9 | K–5 | 0.6 mi | 266 | Compare → |
| North Bridge AcademyPrivate · tuition | Not rated | 2–8 | 0.7 mi | 95 | Compare → |
| Mount Tamalpais SchoolPrivate · tuition | Not rated | K–8 | 0.8 mi | 259 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Marin Horizon School is listed in Mill Valley, CA; verify the current enrollment path directly.
About Marin Horizon School
Marin Horizon School is a private elementary school in Mill Valley, CA, serving approximately 185 students in grades Pre-K-8th with a 6.6:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #237 of 1,787 private schools in CA.
Frequently asked questions
Common questions about Marin Horizon School
What grades does Marin Horizon School serve?
Marin Horizon School serves students in grades Pre-K through 8th.
How many students attend Marin Horizon School?
Marin Horizon School has an enrollment of approximately 185 students.
What is the student-teacher ratio at Marin Horizon School?
The student-teacher ratio at Marin Horizon School is 6.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Marin Horizon School rank in CA?
Marin Horizon School ranks #237 of 1,787 private schools in CA.
What is Marin Horizon School's MySchoolScout rating?
Marin Horizon School has a current MySchoolScout rating of 7.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Marin Horizon School a private school?
Yes, Marin Horizon School is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is Marin Horizon School a religious school?
No, Marin Horizon School is a nonsectarian (non-religious) private school.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- Pre-K – 8th
- Enrollment
- 185
- Gender Split
- 54% M / 46% F
- Student-Teacher Ratio
- 6.6:1
- Teachers (FTE)
- 28
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 7 hours
- Days Per Year
- 172 days
- Setting
- Large Suburb
- County
- Marin County
- Phone
- (415) 388-8408
- Area population (ZIP 94941)
- 32,349
- Area average commute
- 27.5 min
- Area median age
- 45.6
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
- Vintage not available. Do not use this measure alone.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 94941; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22
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