Excellent
#15 of 388 private schools in MA
Top 4% of private schools
Commonwealth School
High School
151 COMMONWEALTH AVE, Boston, MA 02116
Enrollment
148
Student-Teacher
4.5:1
Score
8.2
Grades
9th – 12th
Enrollment
148
Student-Teacher
4.5:1
Score
8.2
Grades
9th – 12th
Data vintage
2021-22
Data vintage2021-22
How this school compares
Massachusetts private schools
#15 of 388
In Boston
#3 of 15
public schools
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Commonwealth School
High School in Boston · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Learning Project Elementary School
0.1 mi away. Use as a geographic alternative in the same move search.
Snowden International High School
0.1 mi away. Use as a geographic alternative in the same move search.
About Commonwealth School
Commonwealth School is a private high school in Boston, MA. Commonwealth School serves approximately 148 students, and covers grades 9th-12th, and has a 4.5:1 student-teacher ratio. Commonwealth School has a current MySchoolScout rating of 8.2 out of 10 and ranks #15 of 388 private schools in MA.
- This school 8.2 · Excellent
- MA avg 6.4
What Parents Should Know
At 148 students, Commonwealth School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
At 4.5:1 students to teachers, Commonwealth School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Commonwealth School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.
Compare to Public Schools
BetaHow Commonwealth School compares to 8 public schools serving similar grades in Boston, MA
Student Demographics
Nearby High Schools
| School | Rating |
|---|---|
| Commonwealth School (this school) | 8.2 |
| Snowden International High School | 7.0 |
| Quincy Upper School | 6.7 |
| Melvin H. King South End Academy | 5.9 |
| Boston Arts Academy | 7.0 |
| Boston Latin School | 7.5 |
| Edward M. Kennedy Academy for Health Careers (Horace Mann | 5.4 |
| MATCH Charter Public School | 5.1 |
| Margarita Muniz Academy | 3.7 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
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 MA.
Data Unavailable
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 MA
Test Scores
Test score data not yet available for this school.
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
151 COMMONWEALTH AVE, Boston, MA 02116
Nearby Alternatives
Families considering Commonwealth School may also want to explore other high schools in the area. THE NEWMAN SCHOOL (rated 8.6/10, 0.2 miles away), which scores slightly higher. Another option is THE NEWMAN SCHOOL (rated 8.1/10, 0.2 miles away), with a very similar rating. Additionally, Community Charter School of Cambridge (rated 7.6/10, 1.1 miles away, in nearby Cambridge), with a comparable rating. For more schools in Boston, see our Boston schools guide .
Nearby Schools
20 within 1.5 mi| School | Distance | Rating |
|---|---|---|
| LEARNING PROJECT ELEMENTARY SCHOOL Boston | 0.1 mi | 8.1 |
| Snowden International High School Boston | 0.1 mi | 7.0 |
| KINGSLEY MONTESSORI SCHOOL Boston | 0.1 mi | 8.5 |
| THE NEWMAN SCHOOL Boston | 0.2 mi | 8.6 |
| THE NEWMAN SCHOOL Boston | 0.2 mi | 8.1 |
| KINGSLEY MONTESSORI SCHOOL Boston | 0.3 mi | 6.3 |
| PARK STREET SCHOOL Boston | 0.4 mi | 6.5 |
| THE ADVENT SCHOOL Boston | 0.5 mi | 8.0 |
| Melvin H. King South End Academy Boston | 0.6 mi | 5.9 |
| Quincy Upper School Boston | 0.5 mi | 6.7 |
| Boston Adult Tech Academy Back Bay | 0.6 mi | 4.1 |
| Carter School Dorchester | 0.9 mi | 4.9 |
| Blackstone Elementary School Boston | 0.9 mi | 5.2 |
| Hurley K-8 School Boston | 0.9 mi | 5.8 |
| Quincy Elementary School Boston | 0.7 mi | 9.3 |
| Community Charter School of Cambridge Cambridge | 1.1 mi | 7.6 |
| Boston Arts Academy Boston | 1.0 mi | 7.0 |
| Kennedy-Longfellow Cambridge | 1.3 mi | 7.4 |
| Vassal Lane Upper School Cambridge | 1.3 mi | 6.9 |
| Orchard Gardens K-8 School Roxbury | 1.5 mi | 6.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 02116 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$127,309
Median Home Value
$1,583,500
Median Rent
$2,341/mo
Population
22,040
College Educated
76.9%
Homeownership
34.8%
Avg Commute
23.7 min
Poverty Rate
16%
Median Age
34.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| THE MACDUFFIE SCHOOL Granby, MA | 8.1 |
| STONELEIGH-BURNHAM SCHOOL Greenfield, MA | 8.0 |
| CHAPEL HILL CHAUNCY HALL SCHOOL Waltham, MA | 7.8 |
| LEARNING PREP SCHOOL West Newton, MA | 7.4 |
| Ma Academy for Math and Science School Worcester, MA | 9.0 |
| MT ALVERNIA HIGH SCHOOL Newton, MA | 7.1 |
Frequently Asked Questions
Common questions about Commonwealth School
What grades does Commonwealth School serve?
Commonwealth School serves students in grades 9th through 12th.
How many students attend Commonwealth School?
Commonwealth School has an enrollment of approximately 148 students.
What is the student-teacher ratio at Commonwealth School?
The student-teacher ratio at Commonwealth School 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 Commonwealth School rank in MA?
Commonwealth School ranks #15 of 388 private schools in MA.
What is Commonwealth School's MySchoolScout rating?
Commonwealth School has a current MySchoolScout rating of 8.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is Commonwealth School a private school?
Yes, Commonwealth 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 Commonwealth School a religious school?
No, Commonwealth School is a nonsectarian (non-religious) private school.
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Neighborhood Context
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Quick Facts NCES PSS (SY 2021-22)
- Grades
- 9th – 12th
- Enrollment
- 148
- Gender Split
- 55% M / 45% F
- Student-Teacher Ratio
- 4.5:1
- Teachers (FTE)
- 33
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 7 hours
- Days Per Year
- 163 days
- Setting
- Large City
- County
- Suffolk County
- Phone
- (540) 460-0337
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