McCallie School Photo - Through coordinate activities with our sister school GPS, we are able to provide students activities where "all-boys" and the "all-girls" schools can interact.

Lowest Student-Teacher Ratio

Among "All-Boys Schools", view the boarding schools with the lowest student:teacher ratio (2026).
Student:teacher ratios are only one indicator of student attention, as they merely indicate the number of adults on campus (in a teacher-related capacacity) relative to the number of students.
The student:teacher ratio is different than the average class size at a school and should not be confused as such.
S:T Ratio Range: 2:1 15:1 Avg. S:T Ratio: 8:1

Lowest Student-Teacher Ratio

Among All-Boys Schools (out of 27 schools)

Sorted by range (alphabetically within range)
Boarding School
S:T Ratio
Grades
Location
Rank: #1-21.-2
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
S:T Ratio: 2:1
Grades: 6-12
14 Greenwood Lane
Putney, VT 05346
(802) 387-4545
Rank: #2-52.-5
Cardigan Mountain School
All-Boys
(2)
S:T Ratio: 4:1
Grades: 6-9
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Rank: #3-83.-8
Bridgton Academy
All-Boys
S:T Ratio: 5:1
Grades: 12-12, PG
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
Rank: #3-83.-8
Christ School
Christ School Photo
All-Boys (Episcopal Church)
(1)
S:T Ratio: 5:1
Grades: 8-12
500 Christ School Road
Asheville, NC 28704
(828) 684-6232
Rank: #3-83.-8
Salisbury School
All-Boys (Episcopalian)
(2)
S:T Ratio: 5:1
Grades: 9-12, PG
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
Rank: #6-146.-14
Avon Old Farms School
All-Boys
(6)
S:T Ratio: 6:1
Grades: 9-12, PG
500 Old Farms Road
Avon, CT 06001
(800) 464-2866
Rank: #6-146.-14
Blue Ridge School
All-Boys (Non-denominational Christian)
(7)
S:T Ratio: 6:1
Grades: 9-12
273 Mayo Drive
St. George, VA 22935
(434) 985-2811
Rank: #6-146.-14
Trinity-Pawling School
All-Boys (Episcopal)
(1)
S:T Ratio: 6:1
Grades: 8-12, PG  | 7-12, PG (day)
700 Route 22
Pawling, NY 12564
(845) 855-4825
Rank: #6-146.-14
Woodberry Forest School
All-Boys
(2)
S:T Ratio: 6:1
Grades: 9-12
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
Rank: #10-1710.-17
Camden Military Academy
All-Boys (non-sectarian)
(18)
S:T Ratio: 7:1
Grades: 7-12, PG
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
Rank: #10-1710.-17
Hillside School
All-Boys
S:T Ratio: 7:1
Grades: 4-9
404 Robin Hill Street
Marlborough, MA 01752
(508) 485-3483
Rank: #10-1710.-17
Mount Michael Benedictine School
Mount Michael Benedictine School Photo
All-Boys (Catholic)
S:T Ratio: 7:1
Grades: 9-12
22520 Mount Michael Road
Elkhorn, NE 68022
(402) 238-1457
Rank: #13-2313.-23
Fishburne Military School
Fishburne Military School Photo
All-Boys
(7)
S:T Ratio: 8:1
Grades: 8-12  | 6-12 (day)
225 S. Wayne Avenue
Waynesboro, VA 22980
(540) 946-7706
Rank: #13-2313.-23
Fork Union Military Academy
All-Boys (Baptist General Association of Virginia)
(6)
S:T Ratio: 8:1
Grades: 7-12, PG
PO Box 278, 4744 James Madison Hwy
Fork Union, VA 23055
(434) 842-4205
Rank: #13-2313.-23
Georgetown Preparatory School
All-Boys (Catholic)
(3)
S:T Ratio: 8:1
Grades: 9-12
10900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215
Rank: #13-2313.-23
McCallie School
McCallie School Photo - The College Counseling office works with our students to help them find the best college fit for them and to make sure they are best prepared for the application and the financial aid processes.
All-Boys (Christian)
(3)
S:T Ratio: 8:1
Grades: 9-12, PG  | 6-12, PG (day)
500 Dodds Avenue
Chattanooga, TN 37404
(423) 624-8300
Rank: #13-2313.-23
Valley Forge Military Academy
All-Boys
(2)
S:T Ratio: 8:1
Grades: 7-12, PG
1001 Eagle Road
Wayne, PA 19087
(610) 989-1399
Rank: #18-2518.-25
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)
S:T Ratio: 9:1
Grades: 6-12
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
Rank: #18-2518.-25
Subiaco Academy
Subiaco Academy Photo
All-Boys (Catholic)
(1)
S:T Ratio: 9:1
Grades: 7-12
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
Rank: #20-2820.-28
Hargrave Military Academy
All-Boys (Christian)
(6)
S:T Ratio: 10:1
Grades: 7-12, PG
200 Military Drive
Chatham, VA 24531
(800) 432-2480
Rank: #20-2820.-28
St. George's School, Vancouver
All-Boys (Anglican tradition)
S:T Ratio: 10:1
Grades: 8-12  | K-12 (day)
4175 West 29th Avenue
Vancouver, BC, Canada V6S1V1
(604) 221-3890
Rank: #20-2820.-28
Southern Preparatory Academy
All-Boys (non-denominational)
(3)
S:T Ratio: 10:1
Grades: 6-12
174 Ward Circle
Camp Hill, AL 36850
(256) 790-9202
Rank: #23-3123.-31
Marine Military Academy
All-Boys
(1)
S:T Ratio: 11:1
Grades: 7-12, PG
320 Iwo Jima Blvd
Harlingen, TX 78550
(956) 423-6006
Rank: #23-3123.-31
Missouri Military Academy
All-Boys
(6)
S:T Ratio: 11:1
Grades: 7-12, PG
204 Grand Street
Mexico, MO 65265
(573) 581-1776
Rank: #23-3123.-31
Saint Stanislaus High School
All-Boys (Catholic)
S:T Ratio: 11:1
Grades: 7-12
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057
Rank: #26-3226.-32
Riverside Military Academy
All-Boys
(5)
S:T Ratio: 12:1
Grades: 6-12
2001 Riverside Drive
Gainesville, GA 30501
(877) 692-2338
Rank: #27-3327.-33
Army and Navy Academy
Army and Navy Academy Photo
All-Boys (secular)
(4)
S:T Ratio: 15:1
Grades: 7-12
2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338

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