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Average

#263 of 389 private schools in MA

Arlington School

High School

115 MILL ST, Belmont, MA 02478

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on MA statewide data. Learn more

Enrollment

32

Student-Teacher

3.2:1

Score

5.7

Grades

9th – 12th

Updated 2021-22

How this school compares

In Belmont

#3 of 4

public schools

Massachusetts high schools

#71 of 98

About Arlington School

Arlington School is a small, intimate high school located in Belmont, Massachusetts. Serving grades 9 through 12, the school has an enrollment of just 32 students and maintains a very low student-to-teacher ratio of 3.2 to 1. This allows for personalized attention and support from ten full-time equivalent teachers.

While Arlington School's MySchoolScout rating is currently at 2.4 out of 10, the school ranks 64th percentile among Massachusetts high schools, indicating room for academic growth and improvement. Arlington School is situated in a large suburban area, offering students access to diverse communities and resources. Despite its small size, the school fosters a close-knit environment where students can receive individualized guidance and support as they navigate their high school years.

Arlington School’s setting in Belmont provides a rich array of cultural and recreational opportunities for both students and families alike.

What Parents Should Know

With an enrollment of 32 students, Arlington School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

With a student-teacher ratio of 3.2:1, Arlington School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Arlington School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Financial Overview

Source: IRS Form 990 (2024 filing)

Per-Pupil Spending
Total expenses ÷ enrollment
$115,067
Per-Pupil Revenue
Total revenue ÷ enrollment
$132,082
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
1.15x — Strong
Tuition Dependency
Share of revenue from program services (tuition, fees)
90%
Total Assets
End-of-year total assets from IRS filing
$6.2M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 32 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How Arlington School compares to the 6 public schools in Belmont, MA

Student-Teacher Ratio
3.2:1
This School
vs
14.5:1
Public Avg
Avg School Size
32
This School
vs
626
Public Avg
Avg School Scout Rating
5.7
This School
vs
7.1
Public Avg

Student Demographics

White 81.2% vs 0%
Black 6.2% vs 0%
Hispanic 6.2% vs 0%
Asian 6.2% vs 0%
Arlington School Belmont Public Avg

All Schools in Belmont

School Rating
Arlington School (this school) 5.7
Daniel Butler 7.6
Roger E Wellington 5.2
Winthrop L Chenery Middle 6.6
Belmont High 7.7
Winn Brook 7.6
Mary Lee Burbank 8.0

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

What 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.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A 9.3 / 10
View breakdown
Student-Teacher Ratio 3.2:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C 3.3 / 10
View breakdown
School Day Length 5.5 hours
Annual Instructional Hours 1,089
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B- 5.3 / 10
View breakdown
Diversity Index 33%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
D 1.4 / 10
View breakdown
Enrollment 32
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)

White 81.2%
Black 6.2%
Hispanic 6.2%
Asian 6.2%

Source: NCES Private School Survey (PSS)

Location

115 MILL ST, Belmont, MA 02478

Nearby Alternatives

Families considering Arlington School may also want to explore other high schools in the area. Belmont High (rated 7.7/10, 1.3 miles away), which scores notably higher. Another option is BELMONT HILL SCHOOL (rated 7.2/10, 1.0 miles away), which scores notably higher. Additionally, Watertown High (rated 7.2/10, 1.7 miles away, in nearby Watertown), which scores notably higher. For more schools in Belmont, see our Belmont schools guide .

Nearby Schools

20 within 1.9 mi
School Distance Rating
BELMONT DAY SCHOOL Belmont 0.4 mi 7.5
Daniel Butler Belmont 0.7 mi 7.6
WALDORF HIGH SCHOOL OF MASSACHUSETTS BAY Belmont 0.9 mi 5.5
BELMONT HILL SCHOOL Belmont 1.0 mi 7.2
Cunniff Watertown 1.4 mi 8.4
Roger E Wellington Belmont 1.1 mi 5.2
James Russell Lowell Watertown 1.4 mi 8.7
Cyrus E Dallin Arlington 1.5 mi 8.2
James Fitzgerald Elementary School Waltham 1.4 mi 6.5
Brackett Arlington 1.4 mi 7.4
Watertown Middle Watertown 1.6 mi 8.4
GANN ACADEMY-THE NEW JEWISH HIGH SCHOOL Waltham 1.2 mi 6.6
Winthrop L Chenery Middle Belmont 1.3 mi 6.6
Watertown High Watertown 1.7 mi 7.2
Belmont High Belmont 1.3 mi 7.7
CNS/PATHWAYS ACADEMY Arlington 1.9 mi 7.4
Winn Brook Belmont 1.4 mi 7.6
Mary Lee Burbank Belmont 1.5 mi 8.0
Ottoson Middle Arlington 2.0 mi 8.8
LEXINGTON MONTESSORI SCHOOL Lexington 1.9 mi 7.8

Neighborhood Census ACS (2019-2023)

Census data for ZIP 02478 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$177,790

Median Home Value

$1,108,800

Median Rent

$2,382/mo

Population

26,966

College Educated

80.1%

Homeownership

64.4%

Avg Commute

29.5 min

Poverty Rate

3.5%

Median Age

42.4

Community Profile

The community surrounding Arlington School has a median household income of $177,790. It is a well-educated community where 80% of adults hold a bachelor's degree or higher. The median home value in the area is $1,108,800, with a median rent of $2,382/month. The local poverty rate of 3.5% is relatively low. The average commute for residents is 30 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
BERKSHIRE WALDORF HIGH SCHOOL Stockbridge, MA 5.8
CLEARWAY SCHOOL Newton, MA 5.8
VALLEY VIEW SCHOOL North Brookfield, MA 5.8
ANCHOR ACADEMY Middleboro, MA 5.9
WALDORF HIGH SCHOOL OF MASSACHUSETTS BAY Belmont, MA 5.5
NORTH SHORE RECOVERY HIGH SCHOOL Beverly, MA 6.1

Frequently Asked Questions

Common questions about Arlington School

What grades does Arlington School serve?

Arlington School serves students in grades 9th through 12th.

How many students attend Arlington School?

Arlington School has an enrollment of approximately 32 students.

What is the student-teacher ratio at Arlington School?

The student-teacher ratio at Arlington School is 3.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Arlington School rank in MA?

Arlington School is ranked #263 out of 389 private schools in MA.

What is Arlington School's MySchoolScout rating?

Arlington School has a composite rating of 5.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

Is Arlington School a private school?

Yes, Arlington 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 Arlington School a religious school?

No, Arlington School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

City Safety
Elevated (755/100K)

FBI UCR 2024. City-level (Belmont). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
9th – 12th
Enrollment
32
Gender Split
28% M / 72% F
Student-Teacher Ratio
3.2:1
Teachers (FTE)
10
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
5.5 hours
Days Per Year
198 days
Setting
Large Suburb
County
MIDDLESEX
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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