Highest Average ACT Scores

Among "Schools with < 200 Students", 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.
Marvelwood School
Thomas Jefferson School
Wayland Academy
Dublin School
Chatham Hall
North Cedar Academy
THINK Global School
Westover School
Buffalo Seminary
Colorado Timberline Academy
Lake Tahoe Preparatory School
Michigan Lutheran High School
Southern Preparatory Academy
Subiaco Academy
West Nottingham Academy
Lustre Christian High School
Middlebridge School
Average ACT Score
(Out of 36) Range:
19
32 Avg. Average ACT Score
(Out of 36):
25

Highest Average ACT Scores

Among Schools with < 200 Students (out of 26 schools)

Sorted by range (alphabetically within range)
Marvelwood School Photo - We offer a wide variety of competitive athletics each season.
Gr: 9-12, PG
476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047
(1)
Thomas Jefferson School Photo - TJ sits on 20 picturesque acres in suburban St. Louis, MO.
Gr: 7-12
4100 South Lindbergh Blvd.
Saint Louis, MO 63127
(314) 843-4151
(2)
Wayland Academy Photo - Wayland Hall, the most historic buildings on campus, currently houses first-year and sophomore boys. The interior was remodeled recently and offers some of the nicest rooms and gathering spaces on any campus in America.
#2(T2–T3)Wayland Academy
Gr: 9-12, PG
101 North University
Beaver Dam, WI 53916
(800) 860-7725
(4)
Dublin School Photo - There`s dramatic beauty that is apparent on your first visit to Dublin. Surrounded by unspoiled forests, pristine lakes and Mt. Monadnock - the most climbed mountain in the world, our 500-acre campus supports a vibrant and supportive community of scholars, artists and athletes.
Gr: 9-12
18 Lehmann Way, PO Box 522
Dublin, NH 03444
(603) 563-7075
(1)
Chatham Hall Photo - Chatham Hall's campus was built to promote community and collaboration.
#5(T5–T10)Chatham Hall
Gr: 9-12
All-girls (Episcopal)
800 Chatham Hall Circle
Chatham, VA 24531
(434) 432-5516
(5)
Carbondale, CO
Gr: 9-12
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
(8)
The Knox School Photo - Founded in 1904, The Knox School is Long Island's oldest established private school. Our inclusive environment serves grades 6-12 and Post-Graduate, providing students with a broad world perspective and a wide range of skills to prepare them for the next phase of their journeys.
#5(T5–T10)The Knox School
Gr: 6-12, PG
541 Long Beach Road
Saint James, NY 11780
(631) 686-1600
(1)
North Cedar Academy Photo - Welcome to North Cedar Academy!
Gr: 9-12, PG
1500 Port Arthur Road
Ladysmith, WI 54848
(715) 609-1723
(3)
THINK Global School Photo - THINK Global School is comprised of 41 high school students who hail from all over the world. It's an opportunity to live next to and learn from a truly global student body.
Gr: 10-12
1460 Broadway Street #4027
New York, NY 10036
(646) 504-6924
Westover School Photo
#5(T5–T10)Westover School
Gr: 9-12
All-girls
1237 Whittemore Rd.
Middlebury, CT 06762
(203) 577-4521
(12)
Buffalo Seminary Photo - Our oldest tradition may be forward thinking but we are anchored in many other traditions too. Roses and white dresses for commencement. Our Social & Academic Honor Code. Morning Meeting to start the day. ..
#11(T11–T21)Buffalo Seminary
Gr: 9-12, PG
All-girls (non-sectarian)
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
Colorado Timberline Academy Photo - Fall Trip in the Slot Canyons
Gr: 9-12, PG
454 Academy Drive
Durango, CO 81301
(970) 247-5898
(4)
Freeman, SD
#11(T11–T21)Freeman Academy
Gr: 7-12 | K-12 (day)
Christian
PO BOX 1000 748 S. Main St.
Freeman, SD 57029
(605) 925-4237
Lake Tahoe Preparatory School Photo - Lake Tahoe Prep is a coeducational boarding school for students in grades 9-12 located in Olympic Valley, California. With a student body of 70 and student to teacher ratio of 7:1, we lead a program built upon personalized attention. Our students benefit from our robust curriculum approved by the University of California.
Gr: 9-12, PG
255 Olympic Valley Road | P.O. Box 2180
Olympic Valley, CA 96146
(245) 582-8690
Michigan Lutheran High School Photo - Michigan Lutheran High School opened its best-in-class dormitory in August 2014. We are only one of six boarding schools recognized by the state of Michigan.
Gr: 9-12
Wisconsin Evangelical Lutheran Synod
615 East Marquette Woods Road
St. Joseph, MI 49085
(269) 429-7861
Los Olivos, CA
#11(T11–T21)Midland School
Gr: 9-12
PO Box 8 / 5100 Figueroa Mountain Road
Los Olivos, CA 93441
(805) 688-5114
(4)
Camp Hill, AL
Gr: 6-12
All-boys (non-denominational)
174 Ward Circle
Camp Hill, AL 36850
(256) 790-9202
(3)
Subiaco Academy Photo
#11(T11–T21)Subiaco Academy
Gr: 7-12
All-boys (Catholic)
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
(1)
West Nottingham Academy Photo
Gr: 9-12, PG
1079 Firetower Road
Colora, MD 21917
(410) 658-9224
(10)
Lustre, MT
Gr: 9-12
Christian high school
4 Lustre High Circle
Lustre, MT 59225
(406) 392-5735
Middlebridge School Photo
#20(T20–T32)Middlebridge School
Gr: 7-12, PG
333 Ocean Road
Narragansett, RI 02882
(401) 788-0800
Northwood School Photo
#20(T20–T32)Northwood School
Gr: 9-12, PG
92 Northwood Road
Lake Placid, NY 12946
(518) 523-3382
(1)
Oakwood Friends School Photo - Autumn colors on campus
Gr: 9-12 | 6-12 (day)
Quaker
22 Spackenkill Road
Poughkeepsie, NY 12603
(845) 462-4200
St. Margaret's School Photo - College Preparedness: Challenge yourself with a collaborative STEAM curriculum and rigorous academics, including Advanced Placement and Dual Enrollment courses to start earning college credit. Our college counselor will help you to navigate the different colleges and degree fields to best prepare you for life after graduation from St. Margaret's.
#20(T20–T32)St. Margaret's School
Gr: 8-12, PG
All-girls (Episcopal)
PO Box 158, 444 Water Lane
Tappahannock, VA 22560
(804) 443-3357
(7)
Lake Wales, FL
#20(T20–T32)The Vanguard School
Gr: 6-12
22000 Hwy 27
Lake Wales, FL 33859
(863) 676-6091
Verde Valley School Photo - World class rock climbing and hundreds of hiking, mountain biking and horseback riding trails near our campus keep our afternoon activities program varied and exciting.
#20(T20–T32)Verde Valley School
Gr: 9-12
3511 Verde Valley School Road
Sedona, AZ 86351
(928) 284-2272
(12)

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