# School City, state Students per class year Class year Source
1 Thayer Academy Braintree, MA 4.5
18 over 4 class years
2020-23 School's published list
2 Phillips Academy (Andover) Andover, MA 4.0
4 over 1 class year
Class of 2024 School's published list
3 The Taft School Watertown, CT 3.2
16 over 5 class years
past five years (2020-2024) School's published list
4 St. George's School Middletown, RI 3.0
15 over 5 class years
Classes of 2022-2026 School's published list
5 Milton Academy Milton, MA 3.0
9 over 3 class years
2024-2026 School's published list
6 St. Paul's School (NH) Concord, NH 3.0
6 over 2 class years
College Matriculation for the Forms of 2025 and 2026 (combined two-year TOTAL column) School's published list
7 Middlesex School Concord, MA 3.0
3 over 1 class year
Class of 2026 School's published list
8 Millbrook School Millbrook, NY 3.0
3 over 1 class year
Class of 2026 School's published list
9 Pomfret School Pomfret, CT 3.0
3 over 1 class year
Class of 2022 School's published list
10 The Williston Northampton School Easthampton, MA 3.0
3 over 1 class year
Class of 2026 / Classes of 2022-2025 School's published list
11 Kent School Kent, CT 2.7
8 over 3 class years
College Matriculations 2023-2025 School's published list
12 Noble and Greenough School Dedham, MA 2.6
13 over 5 class years
2021–2025 School's published list
13 Northfield Mount Hermon Mount Hermon, MA 2.5
10 over 4 class years
the past four years School's published list
14 Choate Rosemary Hall Wallingford, CT 2.4
12 over 5 class years
IN THE PAST FIVE YEARS, (CLASS OF 2022-2026) School's published list
15 The Hotchkiss School Lakeville, CT 2.0
8 over 4 class years
Classes of 2023, 2024, 2025, and 2026 School's published list
16 Shattuck-St. Marys School Faribault, MN 2.0
4 over 2 class years
Classes of 2024 and 2025 School's published list
17 Blair Academy Blairstown, NJ 2.0
2 over 1 class year
Class of 2026 School's published list
18 Brunswick School Greenwich, CT 2.0
2 over 1 class year
Class of 2026 Matriculation; Composite Matriculation List of 2022-2026 School's published list
19 The Columbus Academy Gahanna, OH 2.0
2 over 1 class year
Class of 2026 School's published list
20 Belmont Hill School Belmont, MA 1.8
9 over 5 class years
2022-2026 School's published list
21 Pingree School South Hamilton, MA 1.8
9 over 5 class years
2021–2025 School's published list
22 St. Sebastian's School Needham, MA 1.8
9 over 5 class years
past five years School's published list
23 Poly Prep Country Day School Brooklyn, NY 1.6
8 over 5 class years
Classes of 2022-2026 School's published list
24 The Agnes Irwin School Bryn Mawr, PA 1.4
7 over 5 class years
Classes of 2022-2026 School's published list
25 The Lawrenceville School Lawrenceville, NJ 1.4
7 over 5 class years
the last five years School's published list
26 The Roxbury Latin School West Roxbury, MA 1.3
8 over 6 class years
2021-2026 School's published list
27 Springside Chestnut Hill Academy Philadelphia, PA 1.2
6 over 5 class years
2022-2026 School's published list
28 The Rivers School Weston, MA 1.2
6 over 5 class years
2022-2026 School's published list
29 Vermont Academy Saxtons River, VT 1.0
6 over 6 class years
Matriculation List (2021-2026) School's published list
30 Trinity Hall Tinton Falls, NJ 1.0
5 over 5 class years
Classes of 2022-2026 School's published list
31 Berkshire School Sheffield, MA 1.0
1 over 1 class year
Class of 2021 School's published list
32 Bishop Feehan Attleboro, MA 1.0
1 over 1 class year
Class of 2026 School's published list
33 Dana Hall School Wellesley, MA 1.0
1 over 1 class year
Class of 2026 School's published list
34 Dwight-Englewood School Englewood, NJ 1.0
1 over 1 class year
Class of 2026 School's published list
35 Ethel Walker School Simsbury, CT 1.0
1 over 1 class year
Class of 2026 School's published list
36 Friends School of Baltimore Baltimore, MD 1.0
1 over 1 class year
Class of 2026 School's published list
37 Hopkins School New Haven, CT 1.0
1 over 1 class year
Class of 2026 School's published list
38 Suffield Academy Suffield, CT 1.0
1 over 1 class year
Class of 2025 School's published list
39 The Bryn Mawr School Baltimore, MD 1.0
1 over 1 class year
Class of 2026 School's published list
40 The Greenwich Country Day School Greenwich, CT 1.0
1 over 1 class year
2021-2025 School's published list
41 The Haverford School Haverford, PA 1.0
1 over 1 class year
2026 School's published list
42 The Pembroke Hill School - Wornall Campus Kansas City, MO 1.0
1 over 1 class year
Class of 2026 School's published list
43 Episcopal High School Alexandria, VA 0.8
4 over 5 class years
Classes of 2022 through 2026 School's published list
44 Emma Willard School Troy, NY 0.8
3 over 4 class years
Classes of 2023, 2024, 2025, 2026 School's published list
45 Nightingale-Bamford School New York, NY 0.8
3 over 4 class years
2022–2025 School's published list
46 Beaver Country Day School Chestnut Hill, MA 0.6
3 over 5 class years
Five Year Summary 2022-2026 School's published list
47 Germantown Academy Fort Washington, PA 0.6
3 over 5 class years
Classes of 2022-2026 School's published list
48 The Seven Hills School Cincinnati, OH 0.6
3 over 5 class years
2021-2025 School's published list
49 The Westminster Schools Atlanta, GA 0.6
3 over 5 class years
Classes 2021-2025 School's published list
50 Westtown School West Chester, PA 0.6
3 over 5 class years
2022-2026 School's published list

The 50 largest of 91 ranked private schools.

Also published, with a total but no class-year window we can read, so not ranked: Garrison Forest School (1), The Lovett School (1).

All schools, public and private, and the lists of colleges that admitted each school's graduates, are on the Trinity College feeder leaderboard. More about the college: Trinity College.

Each count is copied from a list the school published about its own graduates: where they enrolled, one student at one college. The ranked figure is that count divided by the class years the school's list covers. A school that is not on this page did not publish a numbered matriculation list we could read — that is all absence means here. It is never a statement about a school's graduates. Lists of acceptances (where students were admitted, not where they enrolled) are never counted in this ranking: an acceptances list runs about three times an enrollment list, so counting the two together would compare different things. Those lists are ranked on their own, separately.