Average
#884 of 1,787 private schools in CA
Top 49% of private schools
Mills Montessori
Elementary School · South San Francisco, CA
A private elementary school in South San Francisco, CA serving grades Pre-K – 2nd.
1400 HILLSIDE BLVD, South San Francisco, CA 94080
- 4.5:1 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 Mills Montessori 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 17Car-Dependent
- Bike 13Somewhat Bikeable
- City Safety: High1,875/100K
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FBI Uniform Crime Reporting · 2024 · city context (South San Francisco), 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
$135,966
Median home value
$1,159,500
Median rent
$2,840/mo
College educated
40.1%
Homeownership
60.8%
Poverty rate
7%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94080; 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 |
|---|---|---|---|---|---|
| Hillside Christian AcademyPrivate · tuition | 6.7private | K–6 | 0.1 mi | 62 | Compare → |
| Sunshine Gardens ElementaryEnrollment path unverified | 4.7 | K–5 | 0.7 mi | 334 | Compare → |
| Building KidzPrivate · tuition | Not rated | K | 0.8 mi | 20 | Compare → |
| Spruce ElementaryEnrollment path unverified | 3.5 | K–5 | 0.8 mi | 394 | 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.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Mills Montessori is listed in South San Francisco, CA; verify the current enrollment path directly.
About Mills Montessori
Mills Montessori is a private elementary school in South San Francisco, CA, serving approximately 45 students in grades Pre-K-2nd with a 4.5:1 student-teacher ratio. It holds a MySchoolScout rating of 6.3 out of 10 and ranks #884 of 1,787 private schools in CA.
Frequently asked questions
Common questions about Mills Montessori
What grades does Mills Montessori serve?
Mills Montessori serves students in grades Pre-K through 2nd.
How many students attend Mills Montessori?
Mills Montessori has an enrollment of approximately 45 students.
What is the student-teacher ratio at Mills Montessori?
The student-teacher ratio at Mills Montessori is 4.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Mills Montessori rank in CA?
Mills Montessori ranks #884 of 1,787 private schools in CA.
What is Mills Montessori's MySchoolScout rating?
Mills Montessori has a current MySchoolScout rating of 6.3 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Mills Montessori a private school?
Yes, Mills Montessori 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 Mills Montessori a religious school?
No, Mills Montessori is a nonsectarian (non-religious) private school.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- Pre-K – 2nd
- Enrollment
- 45
- Gender Split
- 60% M / 40% F
- Student-Teacher Ratio
- 4.5:1
- Teachers (FTE)
- 10
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 6 hours
- Days Per Year
- 180 days
- Setting
- Small City
- County
- San Mateo County
- Phone
- (650) 616-9000
- Area population (ZIP 94080)
- 65,036
- Area average commute
- 27.1 min
- Area median age
- 42.3
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 94080; 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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