Very Good
#248 of 1,787 private schools in CA
Top 14% of private schools
St Mary's Montessori School
Elementary School · Rancho Cucamonga, CA
A private elementary school in Rancho Cucamonga, CA serving grades Kindergarten – 5th.
6860 N VICTORIA WINDROWS LOOP, Rancho Cucamonga, CA 91739
- 8.5:1 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 St Mary's Montessori School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 34Car-Dependent
- Transit 0Minimal Transit
- Bike 52Bikeable
- City Safety: High2,116/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Rancho Cucamonga), 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
$141,475
Median home value
$860,200
Median rent
$2,508/mo
College educated
44.9%
Homeownership
73.2%
Poverty rate
6.1%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91739; 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 |
|---|---|---|---|---|---|
| Windrows ElementaryEnrollment path unverified | 6.7 | K–5 | 0.2 mi | 582 | Compare → |
| Grapeland ElementaryEnrollment path unverified | 7.6 | K–5 | 0.5 mi | 617 | Compare → |
| John L. Golden ElementaryEnrollment path unverified | 8.6 | K–5 | 1.1 mi | 915 | Compare → |
| Carleton P. Lightfoot ElementaryEnrollment path unverified | 8.5 | K–5 | 1.2 mi | 863 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
St Mary's Montessori School is listed in Rancho Cucamonga, CA; verify the current enrollment path directly.
About St Mary's Montessori School
St Mary's Montessori School is a private elementary school in Rancho Cucamonga, CA, serving approximately 51 students in grades Kindergarten-5th with a 8.5:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #248 of 1,787 private schools in CA.
Frequently asked questions
Common questions about St Mary's Montessori School
What grades does St Mary's Montessori School serve?
St Mary's Montessori School serves students in grades Kindergarten through 5th.
How many students attend St Mary's Montessori School?
St Mary's Montessori School has an enrollment of approximately 51 students.
What is the student-teacher ratio at St Mary's Montessori School?
The student-teacher ratio at St Mary's Montessori School is 8.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does St Mary's Montessori School rank in CA?
St Mary's Montessori School ranks #248 of 1,787 private schools in CA.
What is St Mary's Montessori School's MySchoolScout rating?
St Mary's Montessori 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 St Mary's Montessori School a private school?
Yes, St Mary's Montessori School is a private coeducational school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is St Mary's Montessori School a religious school?
St Mary's Montessori School has a Roman Catholic religious affiliation.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- Kindergarten – 5th
- Enrollment
- 51
- Gender Split
- 55% M / 45% F
- Student-Teacher Ratio
- 8.5:1
- Teachers (FTE)
- 6
- Type
- private
- Coed Status
- coed
- Affiliation
- Roman Catholic
- School Day
- 7.5 hours
- Days Per Year
- 191 days
- Setting
- Large Suburb
- County
- San Bernardino County
- Phone
- (909) 200-2727
- Area population (ZIP 91739)
- 41,722
- Area average commute
- 33.3 min
- Area median age
- 37.2
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 91739; 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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