PrivateSchoolCost
Independent Grades 9–12

Commonwealth School Tuition 2026

Annual tuition: $46,000/year272% above national avg . Located in Boston, Massachusetts.

$46,000
Annual Tuition
$3,833
Per Month
150
Enrolled Students
$764,834
K–12 Total Est.

How Commonwealth School Compares

Commonwealth School $46,000/yr
Massachusetts Average $22,500/yr
National Average $12,350/yr

Commonwealth School tuition is 104% above Massachusetts avg.

Tuition by Grade Level

High School (9–12)
Reported school tuition.
$46,000/yr

K–12 Total Cost Projection

At $46,000/year with 4% annual tuition increases, sending one child through K–12 at Commonwealth School would cost approximately:

$764,834

Estimate assumes 13 years (K–12) at 4% annual increase. Actual costs vary — contact the school for current rates. Use our calculator for your state's average →

School Information

Location
Boston, MA
Affiliation
Independent
Grades Offered
9–12
Enrollment
150 students
School Type
Independent
Data Source
NCES PSS 2021–22

Frequently Asked Questions

How much does Commonwealth School tuition cost?

Commonwealth School charges $46,000/year in 2026 — 272% above the national average of $12,350/year national average. Located in Boston, Massachusetts. Source: NCES Private School Universe Survey.

What is the total cost of attending Commonwealth School from K–12?

At the current tuition of $46,000/year with 4% annual increases, the projected K–12 total for Commonwealth School is approximately $764,834. This estimate assumes tuition increases at the historical 3–5% annual rate for private schools.

How does Commonwealth School tuition compare to other Massachusetts private schools?

Commonwealth School's tuition of $46,000/year is $23,500 above the Massachusetts private school average of $22,500/year. This places it among the higher-cost private schools in Massachusetts.

Does Commonwealth School offer financial aid?

Most private schools, including independent private schools, offer need-based financial aid. Nationally, about 27% of private school students receive aid averaging 48% of tuition. Contact Commonwealth School's admissions office directly for current aid availability and application requirements.

Tuition data sourced from the NCES Private School Universe Survey 2021–22. Figures represent reported or estimated annual tuition. Actual costs may vary — contact the school directly for current tuition, fees, and financial aid information. Data last updated March 2026.