Smallest Average Class Size

Among "All-Boys Schools", view the boarding schools with the smallest average class sizes (2023).
Keep in mind that small statistical differences in average class sizes between schools do not always indicate better student performance at one school or another.
Also keep in mind that boarding schools in general have smaller average class sizes than public schools - even for schools with larger class sizes, a "large" class in a boarding school would still often be considered small by public school standards which often have class sizes of 20 students.
# Students Range: 4 20 Avg. # Students: 12

Smallest Average Class Size

Among All-Boys Schools (out of 33 schools)

Sorted by range (alphabetically within range)
Boarding School
# Students
Grades
Location
Rank: #11
The Greenwood School
The Greenwood School Photo - "Makers of Vermont" is a signature program at The Greenwood School in VT, where students learn to craft metal objects and tools in our blacksmith's forge.
All-Boys
# Students: 4
Grades: 6-12
14 Greenwood Lane
Putney, VT 05346
(802) 387-4545
Rank: #22
The Phelps School
The Phelps School Photo
All-Boys
(1)
# Students: 7
Grades: 6-12, PG
583 Sugartown Road
Malvern, PA 19355
(610) 644-1754
Rank: #3-43.-4
Grand River Academy
Grand River Academy Photo
All-Boys
(1)
# Students: 8
Grades: 8-12, PG
3042 College St.
Austinburg, OH 44010
(440) 275-2811
Rank: #3-43.-4
Robert Land Academy
Robert Land Academy Photo - Robert Land Academy is Canada`s only military-inspired private school. Located in the Niagara Region, Ontario, the Academy began to accept students in 1978. "Robert Land Academy Instilled the Values of Hard Work, Respect and Perseverance in our Son"
All-Boys
# Students: 8
Grades: 5-12
6727 South Chippawa Rd
Wellandport, Ontario, Canada 12345
(905) 386-6203
Rank: #5-65.-6
Blue Ridge School
Blue Ridge School Photo - Our lake offers students a chance to relax, fish, canoe - in the center of campus.
All-Boys (Episcopal)
(7)
# Students: 9
Grades: 9-12
273 Mayo Drive
St. George, VA 22935
(434) 985-2811
Rank: #5-65.-6
Woodberry Forest School
Woodberry Forest School Photo
All-Boys
(2)
# Students: 9
Grades: 9-12
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
Rank: #7-97.-9
Fishburne Military School
Fishburne Military School Photo
All-Boys
(7)
# Students: 10
Grades: 7-12
225 S. Wayne Avenue
Waynesboro, VA 22980
(540) 946-7706
Rank: #7-97.-9
Hargrave Military Academy
Hargrave Military Academy Photo - Hargrave is first and foremost a college preparatory boarding school. Our objective is to develop our cadets into leaders of character prepared for lifelong success.
All-Boys (Baptist)
(6)
# Students: 10
Grades: 7-12, PG
200 Military Drive
Chatham, VA 24531
(800) 432-2480
Rank: #7-97.-9
Trinity-Pawling School
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.
All-Boys (Episcopal)
(1)
# Students: 10
Grades: 8-12, PG  | 7-12, PG (day)
700 Route 22
Pawling, NY 12564
(845) 855-4825
Rank: #10-1210.-12
The Kiski School
The Kiski School Photo - Kiski's outdoor classroom and project-based learning culture gives boys the opportunity to get out of traditional four-walled classrooms and experience the beautiful scenery that Western Pennsylvania autumn offers! With our dedicated STEAM and Makerspace areas, young men get to roll up their sleeves and enjoy hands-on learning!
All-Boys
# Students: 11
Grades: 9-12, PG
1888 Brett Lane
Saltsburg, PA 15681
(724) 639-8035
Rank: #10-1210.-12
Marine Military Academy
Marine Military Academy Photo - Nearly all MMA graduates earn acceptance at the college level or appointment to the service academies. Many matriculate to top-tier universities throughout the United States and the world: Arizona State University; Auburn University; Babson College; Baylor University; Berklee College of Music; Boston College; California Maritime Academy; California Polytechnic State University; California State: Chico; California State: Fullerton; California State: Sacramento; Carnegie Mellon University; Chaminade University of Hawaii; Clemson University;College of the Ozarks ; Colorado School of Mines; Colorado State University; Cornell University; Daniel Webster College; DePauw University; Delta State University; Duquesne University; East Carolina University; Embry Riddle University ; Florida Atlantic University; Florida International University ; Florida State University; Great Lakes Maritime Academy; Hawaii Pacific University; Houston Baptist University; Johnson & Wales University; Incarnate Word University; Illinois Institute of Technology; Indiana University; Lehigh University; Louisiana State University; Massachusetts Institute of Technology; Massachusetts Maritime Academy; McMurray University; Michigan State University; Montana State University; Murray State University; New Mexico Institute of Technology; New Mexico State University; North Carolina State; North Georgia State College; Northern Arizona University; Northeastern University; Norwich University; Ohio State University; Oklahoma State University; Otterbein College; Penn State; Purdue University; Rensselaer Polytechnic Institute; Rice University; Rochester Institute of Technology; Sam Houston State University; San Diego State University; San Francisco State University; San Jose State University; Santa Clara University; Sarah Lawrence College; Sonoma State University; Southern Methodist University; Southern New Hampshire University ; Southwestern University; St. Edward’s University; St. Louis University; St. John’s University; St. Mary’s University; Stephen F. Austin University; Swarthmore; Texas A & M University; Texas A & M at Commerce; Texas A&M at Corpus Christi; Texas A & M at Galveston; Texas A & M at Kingsville; Texas Christian University; Texas Lutheran University; Texas State University; Texas Tech University; The Citadel; Trinity University; Tulane University; United States Air Force Academy; United States Merchant Marine Academy; United States Military Academy; United States Naval Academy; University of Alabama; University of Alaska: Anchorage; University of Arizona; University of California: Davis; University of California: Northridge; University of Central Florida; University of Chicago; University of Cincinnati; University of Colorado; University of Denver; University of Georgia; University of Houston; University of Louisiana at Lafayette; University of Massachusetts: Boston; University of Miami; University of Mississippi; University of Missouri: Rolla; University of Nebraska; University of Nevada: Las Vegas; University of North Carolina: Charlotte; University of North Dakota; University of North Texas; University of Oklahoma; University of Oregon; University of Puget Sound; University of Southern California; University of St. Thomas; University of The South (Sewanee); University of Texas at Austin; University of Texas at Arlington University of Texas at Dallas; University of Texas at San Antonio; University of Tulsa; University of Washington; University of Wyoming; Villanova University; Virginia Military Institute; Virginia Tech University; Wabash College; Webster University; West Virginia University; Westminster College; Yale University; London School of Economics (UK); University of Manchester (UK)…just to name a few!
All-Boys
(1)
# Students: 11
Grades: 7-12, PG
320 Iwo Jima Blvd
Harlingen, TX 78550
(956) 423-6006
Rank: #10-1210.-12
Valley Forge Military Academy
Valley Forge Military Academy Photo - VFMA offers college preparatory academics, credentialed faculty, competitive PIAA athletics, and individual attention, providing cadets with an environment focused on their academic success.
All-Boys
(2)
# Students: 11
Grades: 7-12
1001 Eagle Road
Wayne, PA 19087
(610) 989-1200
Rank: #13-2313.-23
Avon Old Farms School
Avon Old Farms School Photo - Nestled among Cotswold-inspired architecture on 860 acres in the Farmington Valley, Avon Old Farms stands as the leader in preparing boys to become men.
All-Boys
(6)
# Students: 12
Grades: 9-12, PG
500 Old Farms Road
Avon, CT 06001
(800) 464-2866
Rank: #13-2313.-23
Bridgton Academy
Bridgton Academy Photo - Our Humanities Center is one of two academic buildings on campus, and the hub for our academic administration, Focused Academic Coaching, Academic Support, and the Marcella/Sands Lecture Hall.
All-Boys
# Students: 12
Grades: 12-12, PG
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
Rank: #13-2313.-23
Camden Military Academy
Camden Military Academy Photo - A proud family!
All-Boys
(18)
# Students: 12
Grades: 7-12, PG
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
Rank: #13-2313.-23
Cardigan Mountain School
Cardigan Mountain School Photo
All-Boys
(2)
# Students: 12
Grades: 6-9
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Rank: #13-2313.-23
Christ School
Christ School Photo
All-Boys (Episcopal)
(1)
# Students: 12
Grades: 8-12
500 Christ School Road
Asheville, NC 28704
(828) 684-6232
Rank: #13-2313.-23
The Fessenden School
The Fessenden School Photo
All-Boys
# Students: 12
Grades: 5-9  | PK-9 (day)
250 Waltham Street
West Newton, MA 02465
(617) 630-2300
Rank: #13-2313.-23
Fork Union Military Academy
Fork Union Military Academy Photo - The cadets in parade formation. The first full dress parade of the year begins usually at the end of April and is on Sunday.
All-Boys (Baptist)
(6)
# Students: 12
Grades: 7-12, PG
P.O. 278, 4744 James Madison Hwy
Fork Union, VA 23055
(800) 462-3862
Rank: #13-2313.-23
Hillside School
Hillside School Photo
All-Boys
# Students: 12
Grades: 4-9
404 Robin Hill Street
Marlborough, MA 01752
(508) 485-3483
Rank: #13-2313.-23
Riverside Preparatory Academy
Riverside Preparatory Academy Photo
All-Boys
(5)
# Students: 12
Grades: 6-12
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
Rank: #13-2313.-23
Salisbury School
Salisbury School Photo - Salisbury School
All-Boys
(2)
# Students: 12
Grades: 9-12, PG
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
Rank: #13-2313.-23
Southern Preparatory Academy
Southern Preparatory Academy Photo - Southern Prep Academy Corps of Cadets 2021-2022
All-Boys
(3)
# Students: 12
Grades: 6-12
174 Ward Circle
Camp Hill, AL 36850
(256) 307-7348
Rank: #2424
Mount Michael Benedictine School
Mount Michael Benedictine School Photo
All-Boys (Catholic)
# Students: 13
Grades: 9-12
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
Rank: #25-2625.-26
McCallie School
McCallie School Photo - McCallie's academic programs go beyond merely mastering the necessary material. They excel at teaching students to think. McCallie does not teach courses or subjects; McCallie teaches boys.
All-Boys
(3)
# Students: 14
Grades: 9-12, PG  | 6-12, PG (day)
500 Dodds Avenue
Chattanooga, TN 37404
(423) 624-8300
Rank: #25-2625.-26
Missouri Military Academy
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.
All-Boys
(7)
# Students: 14
Grades: 7-12, PG
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Rank: #27-2827.-28
Army and Navy Academy
Army and Navy Academy Photo
All-Boys
(4)
# Students: 15
Grades: 7-12
2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338
Rank: #27-2827.-28
Subiaco Academy
Subiaco Academy Photo - Subiaco Students with Father Cassian
All-Boys (Catholic)
(4)
# Students: 15
Grades: 7-12
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 422-9775
Rank: #29-3329.-33
Georgetown Preparatory School
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.
All-Boys (Catholic)
(3)
# Students: >15
Grades: 9-12
10900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215
Rank: #29-3329.-33
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.
All-Boys (Catholic)
# Students: >15
Grades: 6-12
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
Rank: #29-3329.-33
Flintridge Sacred Heart Academy
All-Boys (Catholic)
# Students: >15
Grades: 9-12
440 N. St. Katherine Drive
La Canada, CA 91011
(626) 685-8521
Rank: #29-3329.-33
St. George's School, Vancouver
St. George's School, Vancouver Photo - St. George's School, Vancouver is an all-boys university preparatory school in Canada. The school offers a Canadian curriculum containing 100+ courses and 26 Advanced Placement subjects.
All-Boys
# Students: >15
Grades: 8-12  | K-12 (day)
4175 West 29th Avenue
Vancouver, BC, Canada V6S1V1
(604) 221-3890
Rank: #29-3329.-33
Saint Stanislaus High School
Saint Stanislaus High School Photo - Mr. Anderson's chemistry class gets to perform cool experiments!
All-Boys (Catholic)
# Students: >15
Grades: 7-12
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057

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