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.
Average ACT Score
(Out of 36) Range: 20 29 Avg. Average ACT Score
(Out of 36): 25
(Out of 36) Range: 20 29 Avg. Average ACT Score
(Out of 36): 25
Highest Average ACT Scores
Among All-Boys Schools (out of 11 schools)
Sorted by range (alphabetically within range)
Boarding School
Average ACT Score
(Out of 36)
(Out of 36)
Grades
Location
Rank: #1-21.-2
Chaminade College Preparatory School ![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. 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.]()

All-Boys (Catholic)
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 6-12
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
St. Louis, MO 63131
(314) 692-6645
Rank: #1-21.-2
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
Woodberry Forest, VA 22989
(888) 798-9371
Rank: #3-53.-5
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12, PG | 6-12, PG (day)
500 Dodds Avenue
Chattanooga, TN 37404
(423) 624-8300
Chattanooga, TN 37404
(423) 624-8300
Rank: #3-53.-5
Mount Michael Benedictine School ![Mount Michael Benedictine School Photo Mount Michael Benedictine School Photo]()

All-Boys (Catholic)
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
Elkhorn, NE 68022
(402) 238-1457
Rank: #3-53.-5
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 7-12
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
Subiaco, AR 72865
(479) 934-1000
Rank: #6-86.-8
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 8-12
500 Christ School Road
Asheville, NC 28704
(828) 684-6232
Asheville, NC 28704
(828) 684-6232
Rank: #6-86.-8
St. Lawrence Seminary High School ![St. Lawrence Seminary High School Photo St. Lawrence Seminary High School Photo]()

All-Boys (Catholic)
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 9-12
301 Church Street
Mt. Calvary, WI 53057
(920) 753-7570
Mt. Calvary, WI 53057
(920) 753-7570
Rank: #6-86.-8
Saint Stanislaus High School ![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. 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.]()

All-Boys (Catholic)
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 7-12
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057
Bay St. Louis, MS 39520
(228) 467-9057
Rank: #9-119.-11
Average ACT Score
(Out of 36): <24
(Out of 36): <24
Grades: 7-12, PG
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
Camden, SC 29020
(803) 432-6001
Rank: #9-119.-11
Average ACT Score
(Out of 36): <24
(Out of 36): <24
Grades: 7-12, PG
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Mexico, MO 65265
(573) 581-1776
Rank: #9-119.-11
Average ACT Score
(Out of 36): <24
(Out of 36): <24
Grades: 6-12
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
Gainesville, GA 30501
(877) 692-2338
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