Commonwealth School

Boston · MA · Private independent

Private

Similar nearby schools

Most similar nearby schools

The Newman School → The Newman School → Boston University Academy → Winsor School → Ivy Street School → Bay Cove Academy → Meridian Academy → German International School Boston →

SAT 1470 avg 10 National Merit Semifinalists

At a glance

Programs & features

10 National Merit Semifinalists (2026)

Academic signals

SAT avg 1470
ACT avg 33
AP exam pass rate 96%

Composed from the school's own published profile (2026), and other public data. Full breakdowns below.

You've seen Commonwealth School. What are your child's real college odds? Check any college in 10 seconds — no email needed — then get the free Family Decision Report: Reach / Competitive / Match / Likely + the real cost range for every college on their list. Check odds →

How Commonwealth School compares for families

Among the academically strongest private schools in our database.

▸ NationallySAT mean 1470 (≈ top 3% of US test-takers) · ACT mean 33.0 (≈ top 2%) · 96% AP pass rate (US average: ~60%) · 10 National Merit Semifinalists last year (NMSF is the top 1% of US PSAT scorers) · Top 5% of the 218 curated private schools in our database on AP pass rate.
▸ LocallyMA students outperform the US average on NAEP 8th-grade math (+14 points).
▸ vs Similar SchoolsThe closest comparables nearby: The Newman School, The Newman School, Boston University Academy and 5 more. See the sidebar to compare side-by-side.

For Parents

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Objective, government-grade data — no school pays us for placement.

Your state's public flagship

University of Massachusetts-Amherst

58%

admit rate

$17,772

in-state tuition/yr · $40,449 out-of-state

1300–1480

SAT 25–75 · ACT 29–33

The in-state tuition gap is the flagship's biggest draw — most in-state families pay far less than the out-of-state sticker. Average net price after aid runs about $22,383/yr. Admission odds depend on your student's GPA and test scores, not which high school they attend.

See the full University of Massachusetts-Amherst profile → Estimate your odds with your scores →

Source: IPEDS admissions, tuition & enrollment + College Scorecard net price. Flagship = the state's primary public research university.

Their published matriculation list

Where their graduates enrolled

Commonwealth School publishes where its graduates enrolled. What follows is copied from that document — 68 colleges, in the document's own order.

Years, as the document states them
2022–2026

Barnard College Boston College Boston University Bowdoin College Brandeis University Brown University Bryn Mawr College Carleton College Carnegie Mellon University Case Western Reserve University Claremont McKenna College Colby College Colgate University Columbia University Cornell University Duke University Emory University Grinnell College Harvard University Harvey Mudd College Haverford College Johns Hopkins University Kenyon College Lesley University Macalester College MIT McGill University Middlebury College Mount Holyoke College New England Conservatory

and 38 more

New York University Northeastern University Northwestern University Pomona College Princeton University Reed College Rhode Island School of Design Smith College Stanford University Swarthmore College Syracuse University Tufts University Tulane University University College Dublin University College London University of California, Berkeley University of California San Diego University of Chicago University of Colorado Boulder University of Edinburgh Univ. of Illinois Urbana-Champaign Univ. of Massachusetts Amherst University of Michigan University of Oxford University of Pennsylvania University of Rochester University of Southern California University of Toronto University of Wisconsin—Madison Vanderbilt University Washington Univ. in St. Louis Wellesley College Wentworth Institute of Technology Wesleyan University Whitman College William & Mary, The College of Williams College Yale University

These graduates went on to the colleges above.

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We'll load 10 from the list above — add your name, email and your child's numbers and we'll see where your child lands at each.

Independently verified As published by Commonwealth School — Commonwealth School Profile 2026-2027 ↗. Found at: p.3, 'College and University Matriculation 2022–2026'.

Not enough enrollment history on file to chart a trend for this school yet.

Most similar nearby high schools

The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.

School	Type	Miles	HS enrollment	Trend
The Newman School Boston	Private	0.2	212	-23.5%
The Newman School Boston	Private	0.2	235	-9.6%
Boston University Academy Boston	Private	1.6	220	+14.0%
Winsor School Boston	Private	1.7	478	+2.6%
Ivy Street School Brookline	Private	1.8	50	—
Bay Cove Academy Brookline	Private	2.5	27	—
Meridian Academy Jamaica Plain	Private	3.0	77	+24.2%
German International School Boston Boston	Private	3.0	234	+5.9%

What are your child's odds? →

What families ask next

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