# School City, state Students per class year Class year Source
1 Milton Academy Milton, MA 6.3
19 over 3 class years
2024-2026 School's published list
2 Harvard-Westlake School Studio City, CA 6.0
6 over 1 class year
BY THE CLASSES OF 2021-2025 School's published list
3 Phillips Academy (Andover) Andover, MA 6.0
6 over 1 class year
Class of 2024 School's published list
4 Ethical Culture Fieldston School New York, NY 5.4
27 over 5 class years
Classes of 2022–2026 School's published list
5 Riverdale Country School Bronx, NY 5.3
32 over 6 class years
Higher Ed Enrollment 2021-2026 School's published list
6 Choate Rosemary Hall Wallingford, CT 5.2
26 over 5 class years
IN THE PAST FIVE YEARS, (CLASS OF 2022-2026) School's published list
7 St Ann'S School Brooklyn, NY 5.0
5 over 1 class year
CLASS OF 2024 School's published list
8 Dalton School New York, NY 4.7
28 over 6 class years
2019-2024 School's published list
9 The Lawrenceville School Lawrenceville, NJ 4.6
23 over 5 class years
the last five years School's published list
10 St. Mark's School of Texas Dallas, TX 4.3
13 over 3 class years
Classes of 2023-2025 School's published list
11 The Hotchkiss School Lakeville, CT 4.2
17 over 4 class years
Classes of 2023, 2024, 2025, and 2026 School's published list
12 Wheeler School Providence, RI 4.2
17 over 4 class years
College Matriculation for the Classes of 2022-25 School's published list
13 Noble and Greenough School Dedham, MA 4.0
20 over 5 class years
2021–2025 School's published list
14 St. John's School Houston, TX 4.0
20 over 5 class years
Over the past five (2022-2026) graduating classes School's published list
15 Brunswick School Greenwich, CT 4.0
4 over 1 class year
Class of 2026 Matriculation; Composite Matriculation List of 2022-2026 School's published list
16 Hopkins School New Haven, CT 4.0
4 over 1 class year
Class of 2026 School's published list
17 The Taft School Watertown, CT 3.8
19 over 5 class years
past five years (2020-2024) School's published list
18 Horace Mann School Bronx, NY 3.7
11 over 3 class years
Class of 2024 - 2026 Graduates School's published list
19 Concord Academy Concord, MA 3.6
18 over 5 class years
2021 to 2025 School's published list
20 The Pingry School Basking Ridge, NJ 3.2
13 over 4 class years
2022-2025 School's published list
21 The Roxbury Latin School West Roxbury, MA 3.0
18 over 6 class years
2021-2026 School's published list
22 Greens Farms Academy Westport, CT 3.0
15 over 5 class years
Class of 2022-2026 School's published list
23 Spence School New York, NY 3.0
15 over 5 class years
Classes of 2021 - 2025 School's published list
24 Delbarton School Morristown, NJ 3.0
3 over 1 class year
Class of 2026 School's published list
25 Dwight-Englewood School Englewood, NJ 3.0
3 over 1 class year
Class of 2026 School's published list
26 Marlborough School Los Angeles, CA 3.0
3 over 1 class year
Class of 2026 School's published list
27 McDonogh School Owings Mills, MD 3.0
3 over 1 class year
Class of 2026 School's published list
28 Middlesex School Concord, MA 3.0
3 over 1 class year
Class of 2026 School's published list
29 The Hun School of Princeton Princeton, NJ 3.0
3 over 1 class year
CLASS OF 2026 MATRICULATION School's published list
30 Friends Seminary New York, NY 2.8
14 over 5 class years
The Classes of 2022–2026 School's published list
31 Punahou School Honolulu, HI 2.8
11 over 4 class years
over the last four years: 2026, 2025, 2024, and 2023 School's published list
32 Lakeside School Seattle, WA 2.6
13 over 5 class years
2021-2025 School's published list
33 The Brearley School New York, NY 2.4
12 over 5 class years
2022–2026 School's published list
34 John Burroughs School Saint Louis, MO 2.2
11 over 5 class years
2021-2025 School's published list
35 The Westminster Schools Atlanta, GA 2.2
11 over 5 class years
Classes 2021-2025 School's published list
36 College Preparatory School Oakland, CA 2.0
10 over 5 class years
the last five years School's published list
37 Groton School Groton, MA 2.0
10 over 5 class years
2022–2026 School's published list
38 Polytechnic School Pasadena, CA 2.0
10 over 5 class years
Class of 2022-2026 School's published list
39 The Chapin School New York, NY 2.0
10 over 5 class years
2022-2026 School's published list
40 The Mountain School of Milton Academy Vershire, VT 2.0
10 over 5 class years
2021-2025 School's published list
41 The Potomac School Mclean, VA 2.0
8 over 4 class years
past four years School's published list
42 Crossroads School Santa Monica, CA 2.0
6 over 3 class years
classes of 2023-25 School's published list
43 Marin Academy San Rafael, CA 2.0
6 over 3 class years
CLASSES OF 2023–2025 School's published list
44 St. Paul's School (NH) Concord, NH 2.0
4 over 2 class years
College Matriculation for the Forms of 2025 and 2026 (combined two-year TOTAL column) School's published list
45 Avenues the World School New York, NY 2.0
2 over 1 class year
CLASSES OF 2023–2026 School's published list
46 Bullis School Potomac, MD 2.0
2 over 1 class year
Class of 2026 School's published list
47 Chadwick School Palos Verdes Estate, CA 2.0
2 over 1 class year
Class of 2025 School's published list
48 Falmouth Academy Falmouth, MA 2.0
2 over 1 class year
Class of 2026 School's published list
49 Little Red School House and Elisabeth Irwin High School New York, NY 2.0
2 over 1 class year
CLASS OF 2022 School's published list
50 Paideia School Atlanta, GA 2.0
2 over 1 class year
Class of 2026 School's published list

The 50 largest of 188 ranked private schools.

Also published, with a total but no class-year window we can read, so not ranked: St Andrew'S School (11), Pierrepont School (2), The Lovett School (1).

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

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.