# School City, state Students per class year Class year Source
1 St Ignatius College Prep Chicago, IL 29.0
29 over 1 class year
CLASS OF 2026 School's published list
2 Depaul College Prep Chicago, IL 17.0
17 over 1 class year
Class of 2025 School's published list
3 Canterbury School Fort Wayne, IN 14.0
84 over 6 class years
2019-2024 School's published list
4 Fenwick High School Oak Park, IL 11.0
11 over 1 class year
Class of 2025 School's published list
5 Santa Margarita Catholic High School Rancho Santa Margarita, CA 7.0
7 over 1 class year
Class of 2025 School's published list
6 John Burroughs School Saint Louis, MO 5.6
28 over 5 class years
2021-2025 School's published list
7 Loyola High School Los Angeles, CA 4.4
22 over 5 class years
2020-24 School's published list
8 St Ignatius High School Cleveland, OH 4.3
13 over 3 class years
CLASSES OF 2024-2025-2026 School's published list
9 Brentwood School Los Angeles, CA 4.0
4 over 1 class year
Class of 2024 School's published list
10 St. Luke's School (New Canaan) New Canaan, CT 4.0
4 over 1 class year
Class of 2026 / Classes 2021-2025 School's published list
11 St. Margaret's Episcopal School San Juan Capistrano, CA 4.0
4 over 1 class year
Class of 2026 School's published list
12 Greenhill School Addison, TX 3.8
15 over 4 class years
2022 - 2025 School's published list
13 Pine Crest School Fort Lauderdale, FL 3.0
15 over 5 class years
2022-26 School's published list
14 The Seven Hills School Cincinnati, OH 3.0
15 over 5 class years
2021-2025 School's published list
15 Berkeley Preparatory School Tampa, FL 3.0
3 over 1 class year
Class of 2026 School's published list
16 Georgetown Preparatory School North Bethesda, MD 3.0
3 over 1 class year
Class of 2025 School's published list
17 The Bolles School Jacksonville, FL 3.0
3 over 1 class year
Class of 2026 School's published list
18 The Greenwich Country Day School Greenwich, CT 3.0
3 over 1 class year
2021-2025 School's published list
19 The Hun School of Princeton Princeton, NJ 3.0
3 over 1 class year
CLASS OF 2026 MATRICULATION School's published list
20 The Pennington School Pennington, NJ 3.0
3 over 1 class year
Class of 2026 School's published list
21 Lake Forest Academy Lake Forest, IL 2.8
11 over 4 class years
2021 - 2024 School's published list
22 The Lawrenceville School Lawrenceville, NJ 2.2
11 over 5 class years
the last five years School's published list
23 University of Chicago Lab School Chicago, IL 2.2
9 over 4 class years
In the past four years School's published list
24 Germantown Academy Fort Washington, PA 2.0
10 over 5 class years
Classes of 2022-2026 School's published list
25 Poly Prep Country Day School Brooklyn, NY 2.0
10 over 5 class years
Classes of 2022-2026 School's published list
26 Notre Dame High School Sherman Oaks, CA 2.0
8 over 4 class years
2022 - 2025 School's published list
27 The Pingry School Basking Ridge, NJ 2.0
8 over 4 class years
2022-2025 School's published list
28 University School of Nashville Nashville, TN 2.0
8 over 4 class years
2022-2025 School's published list
29 Bullis School Potomac, MD 2.0
2 over 1 class year
Class of 2026 School's published list
30 Delbarton School Morristown, NJ 2.0
2 over 1 class year
Class of 2026 School's published list
31 McDonogh School Owings Mills, MD 2.0
2 over 1 class year
Class of 2026 School's published list
32 Notre Dame School of Manhattan New York, NY 2.0
2 over 1 class year
Class of 2025 School's published list
33 Oratory Preparatory School Summit, NJ 2.0
2 over 1 class year
Class of 2026 School's published list
34 Prestonwood Christian Academy Plano, TX 2.0
2 over 1 class year
Class of 2025 School's published list
35 Tabor Academy Marion, MA 2.0
2 over 1 class year
Class of 2025 Matriculation School's published list
36 Colorado Academy Denver, CO 1.8
7 over 4 class years
Classes 2022-2025 School's published list
37 The Westminster Schools Atlanta, GA 1.6
8 over 5 class years
Classes 2021-2025 School's published list
38 Palmer Trinity School Palmetto Bay, FL 1.5
6 over 4 class years
Classes of 2023–2026 School's published list
39 Milton Academy Milton, MA 1.3
4 over 3 class years
2024-2026 School's published list
40 Saddle River Day School Saddle River, NJ 1.2
7 over 6 class years
2021-2026 School's published list
41 Ethical Culture Fieldston School New York, NY 1.2
6 over 5 class years
Classes of 2022–2026 School's published list
42 Montgomery Bell Academy Nashville, TN 1.2
6 over 5 class years
2022 – 2026 School's published list
43 Moorestown Friends School Moorestown, NJ 1.2
6 over 5 class years
Classes of 2021-2025 School's published list
44 St Andrew'S Episcopal School Austin, TX 1.2
6 over 5 class years
CLASSES OF 2021-2025 School's published list
45 The Barstow School Kansas City, MO 1.2
6 over 5 class years
2021-2025 School's published list
46 Francis Parker School San Diego, CA 1.2
5 over 4 class years
2022-2025 School's published list
47 Newark Academy Livingston, NJ 1.2
5 over 4 class years
2023-2026 School's published list
48 Severn School Severna Park, MD 1.0
5 over 5 class years
Classes of 2022-2026 School's published list
49 St. John's School Houston, TX 1.0
5 over 5 class years
Over the past five (2022-2026) graduating classes School's published list
50 The John Cooper School The Woodlands, TX 1.0
5 over 5 class years
Class of 2022 - 2026 School's published list

The 50 largest of 145 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 Indiana University Bloomington feeder leaderboard. More about the college: Indiana University Bloomington.

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.