# School City, state Students per class year Class year Source
1 Bellarmine Preparatory School Tacoma, WA 21.0
21 over 1 class year
Class of 2026 School's published list
2 Lakeside School Seattle, WA 14.0
70 over 5 class years
2021-2025 School's published list
3 Eastside Preparatory School Kirkland, WA 11.0
55 over 5 class years
2021-2025 School's published list
4 University Prep Seattle, WA 10.2
51 over 5 class years
2022–2026 School's published list
5 Charles Wright Academy Tacoma, WA 7.6
38 over 5 class years
Class of 2021-2025 School's published list
6 The Northwest School Seattle, WA 6.6
33 over 5 class years
classes of 2021-2025 School's published list
7 St George'S School Spokane, WA 4.0
4 over 1 class year
2025 School's published list
8 The Bush School Seattle, WA 3.8
23 over 6 class years
2020-2025 School's published list
9 Valley Christian High School San Jose, CA 3.5
7 over 2 class years
Class of 2024 & 2025 School's published list
10 The Head-Royce School Oakland, CA 3.0
15 over 5 class years
(2021–25) School's published list
11 The Harker School San Jose, CA 3.0
9 over 3 class years
Classes of 2023, 2024 & 2025 School's published list
12 Chadwick School Palos Verdes Estate, CA 3.0
3 over 1 class year
Class of 2025 School's published list
13 Santa Margarita Catholic High School Rancho Santa Margarita, CA 3.0
3 over 1 class year
Class of 2025 School's published list
14 The International School of San Francisco San Francisco, CA 3.0
3 over 1 class year
Class of 2026 School's published list
15 Loyola High School Los Angeles, CA 2.8
14 over 5 class years
2020-24 School's published list
16 Francis Parker School San Diego, CA 2.8
11 over 4 class years
2022-2025 School's published list
17 Lick Wilmerding High School San Francisco, CA 2.8
11 over 4 class years
past four years School's published list
18 Menlo School Atherton, CA 2.3
7 over 3 class years
Classes of 2023-2025 School's published list
19 Sage Hill School Newport Coast, CA 2.3
7 over 3 class years
2023-2025 School's published list
20 Rowland Hall Salt Lake City, UT 2.0
2 over 1 class year
Class of 2026 School's published list
21 La Jolla Country Day School La Jolla, CA 1.7
5 over 3 class years
2023-2025 School's published list
22 Athenian School Danville, CA 1.5
6 over 4 class years
In the past four years, (2023-2026) School's published list
23 Northfield Mount Hermon Mount Hermon, MA 1.5
6 over 4 class years
the past four years School's published list
24 St. John's School Tamuning, GU 1.5
6 over 4 class years
Classes of 2018–2022 School's published list
25 Kamehameha Schools Kapalama Campus Honolulu, HI 1.4
10 over 7 class years
the last seven years, 2017-2023 School's published list
26 Urban School of San Francisco San Francisco, CA 1.4
7 over 5 class years
2022-2026 School's published list
27 Laurel School Shaker Heights, OH 1.2
6 over 5 class years
2021-2025 School's published list
28 St Andrew'S Episcopal School Austin, TX 1.2
6 over 5 class years
CLASSES OF 2021-2025 School's published list
29 The John Cooper School The Woodlands, TX 1.2
6 over 5 class years
Class of 2022 - 2026 School's published list
30 Albuquerque Academy Albuquerque, NM 1.2
5 over 4 class years
The classes of 2023-26 have matriculated at the following colleges and universities School's published list
31 Polytechnic School Pasadena, CA 1.0
5 over 5 class years
Class of 2022-2026 School's published list
32 Santa Catalina School Monterey, CA 1.0
5 over 5 class years
Classes of 2021-2025 School's published list
33 Catlin Gabel School Portland, OR 1.0
4 over 4 class years
last four years School's published list
34 Hawaii Preparatory Academy Kamuela, HI 1.0
4 over 4 class years
The classes of 2017 to 2020 School's published list
35 Notre Dame High School Sherman Oaks, CA 1.0
4 over 4 class years
2022 - 2025 School's published list
36 University of Chicago Lab School Chicago, IL 1.0
4 over 4 class years
In the past four years School's published list
37 Branson School Ross, CA 1.0
3 over 3 class years
Branson Classes of 2024-2026 School's published list
38 Flintridge Sacred Heart Academy La Canada, CA 1.0
3 over 3 class years
Past 3 Years School's published list
39 Marin Academy San Rafael, CA 1.0
3 over 3 class years
CLASSES OF 2023–2025 School's published list
40 Brentwood School Los Angeles, CA 1.0
1 over 1 class year
Class of 2024 School's published list
41 Bullis School Potomac, MD 1.0
1 over 1 class year
Class of 2026 School's published list
42 Cardinal Newman High School Santa Rosa, CA 1.0
1 over 1 class year
Class of 2025 School's published list
43 Dana Hall School Wellesley, MA 1.0
1 over 1 class year
Class of 2026 School's published list
44 Ethel Walker School Simsbury, CT 1.0
1 over 1 class year
Class of 2026 School's published list
45 King School Stamford, CT 1.0
1 over 1 class year
Class of 2026 School's published list
46 Peddie School Hightstown, NJ 1.0
1 over 1 class year
Class of 2026 School's published list
47 Prestonwood Christian Academy Plano, TX 1.0
1 over 1 class year
Class of 2025 School's published list
48 St. Margaret's Episcopal School San Juan Capistrano, CA 1.0
1 over 1 class year
Class of 2026 School's published list
49 St. Paul Academy and Summit School St. Paul, MN 1.0
1 over 1 class year
Class of 2025 School's published list
50 Stevenson School Pebble Beach, CA 1.0
1 over 1 class year
Class of 2025 School's published list

The 50 largest of 97 ranked private schools.

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

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.