Highest Average ACT Scores

Among "All-Boys Schools", view the boarding schools with the highest average ACT scores (2026).
For several key reasons (listed below), these comparisons are intended only as informal reference points for evaluating the ACT taking ability of a school's student body.
A school's average ACT score is based on a relatively small sample of students from year to year (typically less than 100 students for a graduating class).
Average ACT scores, then, can naturally fluctuate year to year while the quality of the overall program and strength of the student body remains consistent.
Schools in the list below are often separated by small statistical differences, which for all intents and purposes, are not meaningful in determining the overall strength of the student body between two schools.
As a final note: average ACT scores should never be used by a family as an expectation of what score they can expect their child to receive if they go to a particular institution.
Chaminade College Preparatory School
Georgetown Preparatory School
Mount Michael Benedictine School
McCallie School
Trinity-Pawling School
Woodberry Forest School
Camden Military Academy
Saint Stanislaus High School
Southern Preparatory Academy
Subiaco Academy
Missouri Military Academy
Riverside Preparatory Academy
Average ACT Score
(Out of 36) Range:
20
29 Avg. Average ACT Score
(Out of 36):
25

Highest Average ACT Scores

Among All-Boys Schools (out of 12 schools)

Sorted by range (alphabetically within range)
Chaminade College Preparatory School Photo - Chaminade is located 20 minutes outside of Downtown St. Louis in the lovely, safe, green neighborhood of Creve Coeur. Our 55 acre campus is fun and lively throughout the school year and a wonderful place not only to study and play but also to become part of the family.
Gr: 6-12
All-boys (Catholic)
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
Georgetown Preparatory School Photo - Georgetown Prep`s excellent faculty includes 62 instructors. With an average tenure of 13 years at Prep, the faculty ranges from veterans with more than 50 years of service to those beginning their teaching careers. Of the 62 full-time instructors, 86% hold an advanced degree.
Gr: 9-12
All-boys (Catholic)
10900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215
(3)
Mount Michael Benedictine School Photo
Gr: 9-12
All-boys (Catholic)
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
McCallie School Photo - The College Counseling office works with our students to help them find the best college fit for them and to make sure they are best prepared for the application and the financial aid processes.
#4(T4–T6)McCallie School
Gr: 9-12, PG | 6-12, PG (day)
All-boys (Christian)
500 Dodds Avenue
Chattanooga, TN 37404
(423) 624-8300
(3)
Trinity-Pawling School Photo - The next-generation school for boys is here, on a campus that feels warm and welcoming and human-scaled, in an academic community that thinks ahead, looks forward, and gets transformational results.
Gr: 8-12, PG | 7-12, PG (day)
All-boys (Episcopal)
700 Route 22
Pawling, NY 12564
(845) 855-4825
(1)
Woodberry Forest School Photo
Gr: 9-12
All-boys (Non-denom. / Christian)
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
(2)
Camden Military Academy Photo - A proud family!
Gr: 7-12, PG
All-boys (non-sectarian)
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
(18)
Saint Stanislaus High School Photo - We make the most of our location right on the Bay, developing unique programs, clubs, and activities for our students to enjoy. Our scuba and sailing clubs enjoy time in the water, while our environmental club focuses on care for our oceans, too.
Gr: 7-12
All-boys (Catholic)
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057
Camp Hill, AL
Gr: 6-12
All-boys (non-denominational)
174 Ward Circle
Camp Hill, AL 36850
(256) 790-9202
(3)
Subiaco Academy Photo
#7(T7–T10)Subiaco Academy
Gr: 7-12
All-boys (Catholic)
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
(1)
Missouri Military Academy Photo - Established in 1889, Missouri Military Academy has transformed young men into leaders who are well-educated, prepared gentlemen of character. Our long history and distinct traditions inspire a sense of pride and duty among the young men who seek to fulfill their potential at MMA.
Gr: 7-12, PG
All-boys (Non-denom. / Christian)
204 Grand Street
Mexico, MO 65265
(573) 581-1776
(6)
Riverside Military Academy Photo
Gr: 6-12
All-boys
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
(5)

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