Very Good
#190 of 1,787 private schools in CA
Top 11% of private schools
Charles Armstrong School
Middle School · Belmont, CA
A private middle school in Belmont, CA serving grades 2nd – 8th.
1405 SOLANA DR, Belmont, CA 94002
- 5.1:1 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 Charles Armstrong 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 34Car-Dependent
- Bike 19Somewhat Bikeable
- City Safety: Elevated1,452/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Belmont), 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
$204,573
Median home value
$2,000,001
Median rent
$2,889/mo
College educated
68.6%
Homeownership
56.2%
Poverty rate
6.6%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94002; 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 |
|---|---|---|---|---|---|
| Tierra Linda MiddleEnrollment path unverified | 8.9 | 6–8 | 0.2 mi | 458 | Compare → |
| Central MiddleEnrollment path unverified | 9.2 | 6–8 | 1.4 mi | 434 | Compare → |
| Crystal Springs Uplands School-middle School CampusPrivate · tuition | Not rated | 6–8 | 1.4 mi | 221 | Compare → |
| San Mateo County Special EducationEnrollment path unverified | 4.1 | K–12 | 1.5 mi | 41 | 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.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Charles Armstrong School is listed in Belmont, CA; verify the current enrollment path directly.
About Charles Armstrong School
Charles Armstrong School is a private middle school in Belmont, CA, serving approximately 224 students in grades 2nd-8th with a 5.1:1 student-teacher ratio. It holds a MySchoolScout rating of 7.6 out of 10 and ranks #190 of 1,787 private schools in CA.
Frequently asked questions
Common questions about Charles Armstrong School
What grades does Charles Armstrong School serve?
Charles Armstrong School serves students in grades 2nd through 8th.
How many students attend Charles Armstrong School?
Charles Armstrong School has an enrollment of approximately 224 students.
What is the student-teacher ratio at Charles Armstrong School?
The student-teacher ratio at Charles Armstrong School is 5.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Charles Armstrong School rank in CA?
Charles Armstrong School ranks #190 of 1,787 private schools in CA.
What is Charles Armstrong School's MySchoolScout rating?
Charles Armstrong School has a current MySchoolScout rating of 7.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Charles Armstrong School a private school?
Yes, Charles Armstrong 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 Charles Armstrong School a religious school?
No, Charles Armstrong School is a nonsectarian (non-religious) private school.
School factsNCES Private School Universe Survey (PSS) (SY 2021–22)
- Grades
- 2nd – 8th
- Enrollment
- 224
- Gender Split
- 53% M / 47% F
- Student-Teacher Ratio
- 5.1:1
- Teachers (FTE)
- 44
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 7 hours
- Days Per Year
- 166 days
- Setting
- Large Suburb
- County
- San Mateo County
- Phone
- (650) 592-7570
- Area population (ZIP 94002)
- 27,730
- Area average commute
- 29.4 min
- Area median age
- 40.4
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 94002; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22
Related reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.