# School City, state Students per class year Class year Source
1 Crossroads School Santa Monica, CA 9.0
27 over 3 class years
classes of 2023-25 School's published list
2 Harvard-Westlake School Studio City, CA 9.0
9 over 1 class year
BY THE CLASSES OF 2021-2025 School's published list
3 Brentwood School Los Angeles, CA 8.0
8 over 1 class year
Class of 2024 School's published list
4 Valley Christian High School San Jose, CA 7.0
14 over 2 class years
Class of 2024 & 2025 School's published list
5 Avenues the World School New York, NY 7.0
7 over 1 class year
CLASSES OF 2023–2026 School's published list
6 Bullis School Potomac, MD 7.0
7 over 1 class year
Class of 2026 School's published list
7 Santa Margarita Catholic High School Rancho Santa Margarita, CA 7.0
7 over 1 class year
Class of 2025 School's published list
8 St Ignatius College Prep Chicago, IL 7.0
7 over 1 class year
CLASS OF 2026 School's published list
9 The Webb Schools Claremont, CA 7.0
7 over 1 class year
Class of 2026 School's published list
10 Flintridge Sacred Heart Academy La Canada, CA 6.3
19 over 3 class years
Past 3 Years School's published list
11 Chadwick School Palos Verdes Estate, CA 6.0
6 over 1 class year
Class of 2025 School's published list
12 St. Margaret's Episcopal School San Juan Capistrano, CA 6.0
6 over 1 class year
Class of 2026 School's published list
13 La Jolla Country Day School La Jolla, CA 5.7
17 over 3 class years
2023-2025 School's published list
14 Marin Academy San Rafael, CA 5.3
16 over 3 class years
CLASSES OF 2023–2025 School's published list
15 Choate Rosemary Hall Wallingford, CT 5.0
25 over 5 class years
IN THE PAST FIVE YEARS, (CLASS OF 2022-2026) School's published list
16 Sage Hill School Newport Coast, CA 5.0
15 over 3 class years
2023-2025 School's published list
17 The Hun School of Princeton Princeton, NJ 5.0
5 over 1 class year
CLASS OF 2026 MATRICULATION School's published list
18 Pine Crest School Fort Lauderdale, FL 4.8
24 over 5 class years
2022-26 School's published list
19 The Harker School San Jose, CA 4.7
14 over 3 class years
Classes of 2023, 2024 & 2025 School's published list
20 The Stony Brook School Stony Brook, NY 4.6
23 over 5 class years
Classes of 2021-2025 School's published list
21 Lakeside School Seattle, WA 4.4
22 over 5 class years
2021-2025 School's published list
22 Ethical Culture Fieldston School New York, NY 4.2
21 over 5 class years
Classes of 2022–2026 School's published list
23 Marlborough School Los Angeles, CA 4.0
4 over 1 class year
Class of 2026 School's published list
24 Peddie School Hightstown, NJ 4.0
4 over 1 class year
Class of 2026 School's published list
25 Rye Country Day School Rye, NY 4.0
4 over 1 class year
Class of 2026 School's published list
26 Stevenson School Pebble Beach, CA 4.0
4 over 1 class year
Class of 2025 School's published list
27 Polytechnic School Pasadena, CA 3.8
19 over 5 class years
Class of 2022-2026 School's published list
28 Menlo School Atherton, CA 3.3
10 over 3 class years
Classes of 2023-2025 School's published list
29 The Head-Royce School Oakland, CA 3.2
16 over 5 class years
(2021–25) School's published list
30 The Lawrenceville School Lawrenceville, NJ 3.2
16 over 5 class years
the last five years School's published list
31 Notre Dame High School Sherman Oaks, CA 3.2
13 over 4 class years
2022 - 2025 School's published list
32 Francis Parker School San Diego, CA 3.0
12 over 4 class years
2022-2025 School's published list
33 Lick Wilmerding High School San Francisco, CA 3.0
12 over 4 class years
past four years School's published list
34 Westridge School Pasadena, CA 3.0
9 over 3 class years
2021-2023 School's published list
35 Georgetown Preparatory School North Bethesda, MD 3.0
3 over 1 class year
Class of 2025 School's published list
36 The International School of San Francisco San Francisco, CA 3.0
3 over 1 class year
Class of 2026 School's published list
37 The Pembroke Hill School - Wornall Campus Kansas City, MO 3.0
3 over 1 class year
Class of 2026 School's published list
38 The Waterford School Sandy, UT 3.0
3 over 1 class year
Class of 2025 School's published list
39 Western Reserve Academy Hudson, OH 3.0
3 over 1 class year
Class of 2026 School's published list
40 Woodside Priory School Portola Valley, CA 3.0
3 over 1 class year
Class of 2026 School's published list
41 Athenian School Danville, CA 2.8
11 over 4 class years
In the past four years, (2023-2026) School's published list
42 Montgomery Bell Academy Nashville, TN 2.6
13 over 5 class years
2022 – 2026 School's published list
43 Albuquerque Academy Albuquerque, NM 2.5
10 over 4 class years
The classes of 2023-26 have matriculated at the following colleges and universities School's published list
44 St. Paul's School (NH) Concord, NH 2.5
5 over 2 class years
College Matriculation for the Forms of 2025 and 2026 (combined two-year TOTAL column) School's published list
45 St. John's School Houston, TX 2.4
12 over 5 class years
Over the past five (2022-2026) graduating classes School's published list
46 Branson School Ross, CA 2.3
7 over 3 class years
Branson Classes of 2024-2026 School's published list
47 Milton Academy Milton, MA 2.3
7 over 3 class years
2024-2026 School's published list
48 Riverdale Country School Bronx, NY 2.2
13 over 6 class years
Higher Ed Enrollment 2021-2026 School's published list
49 University Prep Seattle, WA 2.2
11 over 5 class years
2022–2026 School's published list
50 Cate School Carpinteria, CA 2.0
10 over 5 class years
2022-2026 School's published list

The 50 largest of 195 ranked private schools.

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

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

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.