Saint Stanislaus High School Photo - Evening study halls keep students on track with homework and studying. On a daily basis, our dorm staff makes sure that students are putting forth an honest effort in their school work.

Largest Student Body

Among "All-Boys Schools", view the boarding schools with the largest student bodies (2024-25).
School size comparisons are based on overall population of the school, not the number of boarding students at the school.
The balance between boarders and day students can also be another factor to consider when looking at school size.
# Students Range: 24 1,150 Avg. # Students: 314

Largest Student Body

Among All-Boys Schools (out of 31 schools)

Sorted by range (alphabetically within range)
Boarding School
# Students
Grades
Location
Rank: #11
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: 1150
Grades: 8-12  | K-12 (day)
4175 West 29th Avenue
Vancouver, BC, Canada V6S1V1
(604) 221-3890
Rank: #22
McCallie School
McCallie School Photo - The College Counseling office works with our students to help them find the best college fit and to ensure they are well prepared for the application and financial aid processes.
All-Boys
(3)
# Students: 994
Grades: 9-12, PG  | 6-12, PG (day)
500 Dodds Avenue
Chattanooga, TN 37404
(423) 624-8300
Rank: #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: 800
Grades: 6-12
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
Rank: #44
The Fessenden School
The Fessenden School Photo
All-Boys
# Students: 542
Grades: 5-9  | PK-9 (day)
250 Waltham Street
West Newton, MA 02465
(617) 630-2300
Rank: #55
Georgetown Preparatory School
Georgetown Preparatory School Photo - The Yard is the heart of campus where the students pass between classes, and meet up for clubs and spirit events.
All-Boys (Catholic)
(4)
# Students: 507
Grades: 9-12
10900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215
Rank: #66
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: 405
Grades: 9-12, PG
500 Old Farms Road
Avon, CT 06001
(800) 464-2866
Rank: #77
Woodberry Forest School
Woodberry Forest School Photo
All-Boys
(2)
# Students: 400
Grades: 9-12
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
Rank: #88
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.
All-Boys (Catholic)
# Students: 342
Grades: 7-12
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057
Rank: #99
Army and Navy Academy
Army and Navy Academy Photo
All-Boys
(4)
# Students: 320
Grades: 7-12
2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338
Rank: #1010
Salisbury School
Salisbury School Photo
All-Boys
(2)
# Students: 319
Grades: 9-12, PG
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
Rank: #1111
Christ School
Christ School Photo
All-Boys (Episcopal)
(1)
# Students: 302
Grades: 8-12
500 Christ School Road
Asheville, NC 28704
(828) 684-6232
Rank: #12-1312.-13
Camden Military Academy
Camden Military Academy Photo - A proud family!
All-Boys
(18)
# Students: 300
Grades: 7-12, PG
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
Rank: #12-1312.-13
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)
(7)
# Students: 300
Grades: 7-12, PG
PO Box 278, 4744 James Madison Hwy
Fork Union, VA 23055
(434) 842-4205
Rank: #1414
Riverside Preparatory Academy
Riverside Preparatory Academy Photo
All-Boys
(5)
# Students: 290
Grades: 6-12
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
Rank: #1515
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: 268
Grades: 8-12, PG  | 7-12, PG (day)
700 Route 22
Pawling, NY 12564
(845) 855-4825
Rank: #1616
Marine Military Academy
All-Boys
(1)
# Students: 240
Grades: 7-12, PG
320 Iwo Jima Blvd
Harlingen, TX 78550
(956) 423-6006
Rank: #1717
Cardigan Mountain School
Cardigan Mountain School Photo
All-Boys
(2)
# Students: 235
Grades: 6-9
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Rank: #1818
Mount Michael Benedictine School
Mount Michael Benedictine School Photo
All-Boys (Catholic)
# Students: 225
Grades: 9-12
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
Rank: #1919
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: 220
Grades: 7-12, PG
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Rank: #2020
Hargrave Military Academy
Hargrave Military Academy Photo - Hargrave strives to develop well-rounded young men. Hargrave offers various opportunities for Cadets to be involved with music and the arts.
All-Boys (Baptist)
(6)
# Students: 195
Grades: 7-12, PG
200 Military Drive
Chatham, VA 24531
(800) 432-2480
Rank: #21-2221.-22
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: 170
Grades: 9-12
273 Mayo Drive
St. George, VA 22935
(434) 985-2811
Rank: #21-2221.-22
South Kent School
All-Boys (Episcopal)
# Students: 170
Grades: 9-12, PG
40 Bulls Bridge Rd
South Kent, CT 06785
(860) 927-3539
Rank: #2323
Bridgton Academy
Bridgton Academy Photo - Welcome to Bridgton Academy! Located in the Western Maine foothills and the heart of Maine's Lake Region, we've been preparing young men for the rigors of college and beyond since 1808. We Know PG.
All-Boys
# Students: 155
Grades: 12-12, PG
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
Rank: #24-2524.-25
Subiaco Academy
Subiaco Academy Photo
All-Boys (Catholic)
(4)
# Students: 150
Grades: 7-12
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
Rank: #24-2524.-25
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: 150
Grades: 7-12, PG
1001 Eagle Road
Wayne, PA 19087
(610) 989-1399
Rank: #2626
Hillside School
Hillside School Photo - Hillside School is located on 150 acres of land that is 45 minutes from Boston and 20 minutes from Worcester.
All-Boys
# Students: 145
Grades: 4-9
404 Robin Hill Street
Marlborough, MA 01752
(508) 485-3483
Rank: #2727
St. Lawrence Seminary High School
All-Boys (Catholic)
# Students: 140
Grades: 9-12
301 Church Street
Mt. Calvary, WI 53057
(920) 753-7570
Rank: #2828
Southern Preparatory Academy
Southern Preparatory Academy Photo
All-Boys
(3)
# Students: 130
Grades: 6-12
174 Ward Circle
Camp Hill, AL 36850
(256) 790-9202
Rank: #2929
Fishburne Military School
Fishburne Military School Photo
All-Boys
(7)
# Students: 95
Grades: 8-12  | 6-12 (day)
225 S. Wayne Avenue
Waynesboro, VA 22980
(540) 946-7706
Rank: #3030
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: 50
Grades: 6-12
14 Greenwood Lane
Putney, VT 05346
(802) 387-4545
Rank: #3131
New Summit Academy Costa Rica
New Summit Academy Costa Rica Photo - Our location in Costa Rica is no accident. Costa Rica is an experiential learner's paradise.
All-Boys
# Students: 24
Grades: 9-12, PG
Alajuela Province, Nueva Cumbre
Atenas, Costa Rica 20501
18006099496

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