Among "Schools with 400+ Students", view the boarding schools with the highest average ACT scores (2024-25).
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 36 Avg. Average ACT Score
(Out of 36): 28
(Out of 36) Range: 20 36 Avg. Average ACT Score
(Out of 36): 28
Highest Average ACT Scores
Among Schools with 400+ Students (out of 48 schools)
Sorted by range (alphabetically within range)
ÌÇÐÄvlog¹ÙÍø School
Average ACT Score
(Out of 36)
(Out of 36)
Grades
Location
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12 | Pre-K-12 (day)
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
Tacoma, WA 98403
(253) 284-8603
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12, PG
2500 Main Street
Lawrenceville, NJ 08648
(609) 895-2030
Lawrenceville, NJ 08648
(609) 895-2030
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12, PG
100 Academy Drive
Mercersburg, PA 17236
(717) 328-6173
Mercersburg, PA 17236
(717) 328-6173
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12
1400 Lowell Road
Concord, MA 01742
(978) 371-6524
Concord, MA 01742
(978) 371-6524
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
Concord, NH 03301
(603) 229-4700
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 8-12 | 6-12 (day)
6500 St. Stephen's Drive
Austin, TX 78746
(512) 327-1213
Austin, TX 78746
(512) 327-1213
Rank: #1-81.-8
The Stony Brook School
(Christian)
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 7-12
1 Chapman Parkway
Stony Brook, NY 11790
(631) 751-1800
Stony Brook, NY 11790
(631) 751-1800
Rank: #1-81.-8
Average ACT Score
(Out of 36): >32
(Out of 36): >32
Grades: 9-12
1175 West Baseline Road
Claremont, CA 91711
(909) 482-5214
Claremont, CA 91711
(909) 482-5214
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12 | 6-12 (day)
2100 Mt. Diablo Scenic Blvd.
Danville, CA 94506
(925) 362-7223
Danville, CA 94506
(925) 362-7223
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12, PG
333 Christian Street
Wallingford, CT 06492
(203) 697-2239
Wallingford, CT 06492
(203) 697-2239
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12 | PK-12 (day)
PO Box 801 39221 Woodward Ave.
Bloomfield Hills, MI 48303
(248) 645-3610
Bloomfield Hills, MI 48303
(248) 645-3610
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12 | 5-12 (day)
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
Wellesley, MA 02482
(781) 489-1331
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12, PG
7 Boyden Lane
Deerfield, MA 01342
(413) 774-1400
Deerfield, MA 01342
(413) 774-1400
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12, PG
1500 West Kennedy Road
Lake Forest, IL 60045
(847) 615-3267
Lake Forest, IL 60045
(847) 615-3267
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12 | K-12 (day)
170 Centre Street
Milton, MA 02186
(617) 898-2227
Milton, MA 02186
(617) 898-2227
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 9-12, PG
180 Main Street
Andover, MA 01810
(978) 749-4050
Andover, MA 01810
(978) 749-4050
Rank: #9-179.-17
Average ACT Score
(Out of 36): 30-32
(Out of 36): 30-32
Grades: 8-12 | PK-12 (day)
5521 East Warm Springs Avenue
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 8-12 | PK-12 (day)
1051 N Houston
Bullard, TX 75757
(903) 894-5000
Bullard, TX 75757
(903) 894-5000
Rank: #18-2618.-26
Chaminade College Preparatory School
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: #18-2618.-26
Iolani School
(Episcopal)
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12 | K-12 (day)
563 Kamoku Street
Honolulu, HI 96826
(808) 943-2379
Honolulu, HI 96826
(808) 943-2379
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12, PG
4 Batchelder Road
Windsor, CT 06095
(860) 687-6400
Windsor, CT 06095
(860) 687-6400
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 6-12 | Pre-K-12 (day)
7600 Lyons Road
Coconut Creek, FL 33073
(954) 247-0179
Coconut Creek, FL 33073
(954) 247-0179
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12 | PK-12 (day)
2132 Ivy Road
Charlottesville, VA 22903
(434) 296-5106
Charlottesville, VA 22903
(434) 296-5106
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12
423 Fox Chapel Road
Pittsburgh, PA 15238
(412) 968-3180
Pittsburgh, PA 15238
(412) 968-3180
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 7-12 | 6-12 (day)
319 Webb Road East
Bell Buckle, TN 37020
(931) 389-6003
Bell Buckle, TN 37020
(931) 389-6003
Rank: #18-2618.-26
Average ACT Score
(Out of 36): 28-30
(Out of 36): 28-30
Grades: 9-12, PG
115 College Street
Hudson, OH 44236
(330) 650-9717
Hudson, OH 44236
(330) 650-9717
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12, PG | PK-12, PG (day)
7400 San Jose Blvd.
Jacksonville, FL 32217
(904) 256-5030
Jacksonville, FL 32217
(904) 256-5030
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12
1300 Academy Road
Culver, IN 46511
(574) 842-7100
Culver, IN 46511
(574) 842-7100
Rank: #27-3827.-38
Garrison Forest School
All-Girls
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 8-12 | PK-12 (day)
300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111
Owings Mills, MD 21117
(410) 559-3111
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12
1 Elm Street
Byfield, MA 01922
(978) 499-3120
Byfield, MA 01922
(978) 499-3120
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12, PG
860 Beech Street
Pottstown, PA 19464
(610) 326-1000
Pottstown, PA 19464
(610) 326-1000
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 7-12 | 5-12 (day)
60 Knox Lane
Wheeling, WV 26003
(304) 233-1436
Wheeling, WV 26003
(304) 233-1436
Rank: #27-3827.-38
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: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 7-12 | PK-12 (day)
339 Nacoochee Drive
Rabun Gap, GA 30568
(706) 746-7720
Rabun Gap, GA 30568
(706) 746-7720
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12
3900 Jog Road
Boca Raton, FL 33434
(561) 210-2020
Boca Raton, FL 33434
(561) 210-2020
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12 | PK-12 (day)
1 Community School Drive
Sun Valley, ID 83353
(208) 622-3960
Sun Valley, ID 83353
(208) 622-3960
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 6-12 | PK-12 (day)
13051 Whittington Drive
Houston, TX 77077
(281) 496-7900
Houston, TX 77077
(281) 496-7900
Rank: #27-3827.-38
Average ACT Score
(Out of 36): 26-28
(Out of 36): 26-28
Grades: 9-12, PG
995 Hopmeadow Street
Simsbury, CT 06070
(860) 408-3060
Simsbury, CT 06070
(860) 408-3060
Rank: #39-4639.-46
Cotter Schools
(Catholic)
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 7-12 | PK-12 (day)
1115 West Broadway Street
Winona, MN 55987
(507) 453-5102
Winona, MN 55987
(507) 453-5102
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 9-12, PG | PK-12, PG (day)
1014 Cave Spring Road, SW
Rome, GA 30161
(706) 236-0436
Rome, GA 30161
(706) 236-0436
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 7-12 | PK-12 (day)
202 Smothers Road
Seymour, TN 37865
(865) 573-8321
Seymour, TN 37865
(865) 573-8321
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 9-12 | 2-12 (day)
429 Hale Street
Prides Crossing, MA 01965
(978) 236-3000
Prides Crossing, MA 01965
(978) 236-3000
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 9-12
26 Powderhouse Road, P.O. Box 992
Groton, MA 01450
(978) 448-1530
Groton, MA 01450
(978) 448-1530
Rank: #39-4639.-46
St. Croix Academy
(Christian)
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 6-12
1200 Oakdale Ave.
St. Paul, MN 55118
(651) 455-1521
St. Paul, MN 55118
(651) 455-1521
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 7-12 | 4-12 (day)
201 Campus Drive, PO Box 10
Tallulah Falls, GA 30573
(706) 754-0400
Tallulah Falls, GA 30573
(706) 754-0400
Rank: #39-4639.-46
Average ACT Score
(Out of 36): 24-26
(Out of 36): 24-26
Grades: 7-12 | PK-12 (day)
6189 Winter Garden-Vineland Rd
Windermere, FL 34786
(407) 905-7737
Windermere, FL 34786
(407) 905-7737
Rank: #47-4847.-48
Average ACT Score
(Out of 36): <24
(Out of 36): <24
Grades: 8-12 | K-12 (day)
501 Park Street North
St. Petersburg, FL 33710
(727) 384-5504
St. Petersburg, FL 33710
(727) 384-5504
Rank: #47-4847.-48
Average ACT Score
(Out of 36): <24
(Out of 36): <24
Grades: 9-12, PG
101 West College Blvd
Roswell, NM 88201
(800) 421-5376
Roswell, NM 88201
(800) 421-5376
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