Smallest Average Class Size

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All Schools 
400+ students
400+ students 
200-400 students
200-400 students 
< 200 students
< 200 students 
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  • Among "All-Boys Schools", view the boarding schools with the smallest average class sizes (2019-20).
  • 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.

Smallest Average Class Size (2019-20)

Among All-Boys Schools (out of 39 schools)

Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 1.Rank: #1
    The Woodhall School
    The Woodhall School Photo - The Woodhall School is located in rural Bethlehem, CT on approximately twenty-five acres of woodlands and trails for hiking and biking. The campus is designed to enhance The Woodhall School`s individual approach. The academic and residential areas are architecturally conceived as a small village.
    All-Boys 
    3
    Grades: 9-12
    58 Harrison Lane
    Bethlehem, CT 06751
    (203)266-7788
  • 2.-3.Rank: #2-3
    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 
    4
    Grades: 6-12
    14 Greenwood Lane
    Putney, VT 05346
    (802)387-4545
  • 2.-3.Rank: #2-3
    Hampshire Country School
    Hampshire Country School Photo - Island Pond covers 39 acres and is used regularly for canoeing, swimming and fishing.
    All-Boys 
    4

    Grades: 3-12
    28 Patey Circle
    Rindge, NH 03461
    (603)899-3325
  • 4.Rank: #4
    Grand River Academy
    Grand River Academy Photo - Individualized Instruction
    All-Boys 
    6
    Grades: 8-12, PG
    3042 College St.
    Austinburg, OH 44010
    (440)275-2811
  • 5.Rank: #5
    The Phelps School
    The Phelps School Photo - Founded in 1946, The Phelps School is dedicated to the personalized education for the boy who seeks success academically, personally and socially. Our first obligation is to create a caring, sensitive climate which emphasizes the positive in every situation.
    All-Boys 
    (1)
    7
    Grades: 6-12, PG
    583 Sugartown Road
    Malvern, PA 19355
    (610)644-1754
  • 6.Rank: #6
    St. Thomas More School
    St. Thomas More School Photo
    All-Boys  (Catholic)
    8
    Grades: 8-12, PG
    45 Cottage Road
    Oakdale, CT 06370
    (860)823-3861
  • 7.-8.Rank: #7-8
    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)
    9
    Grades: 9-12
    273 Mayo Drive
    St. George, VA 22935
    (434)985-2811
  • 7.-8.Rank: #7-8
    Woodberry Forest School
    Woodberry Forest School Photo
    All-Boys 
    (2)
    9

    Grades: 9-12
    241 Woodberry Station
    Woodberry Forest, VA 22989
    (888)798-9371
  • 9.-12.Rank: #9-12
    Eaglebrook School
    Eaglebrook School Photo - At the heart of the school is the shared life of teachers, their families, and boys working together. This is the common room of Halsted House, one of five dormitories on campus.
    All-Boys 
    (1)
    10
    Grades: 6-9
    271 Pine Nook Road, P.O. Box 7
    Deerfield, MA 01342
    (413)774-9111
  • 9.-12.Rank: #9-12
    Fishburne Military School
    Fishburne Military School Photo
    All-Boys 
    (5)
    10

    Grades: 7-12
    225 S. Wayne Avenue
    Waynesboro, VA 22980
    (540)946-7700
  • 9.-12.Rank: #9-12
    Hargrave Military Academy
    Hargrave Military Academy Photo - Respect! Integrity! Success! Earn it at Hargrave!
    All-Boys  (Baptist)
    (3)
    10

    Grades: 7-12, PG
    200 Military Drive
    Chatham, VA 24531
    (800)432-2480
  • 12.-15.Rank: #12-15
    Avon Old Farms School
    Avon Old Farms School Photo - Our 860 acre campus is comprised of breathtaking panoramic vistas; rustic hiking trails; a serene pond for swimming and fishing; and abundant seasonal foliage.
    All-Boys 
    (6)
    11
    Grades: 9-12, PG
    500 Old Farms Road
    Avon, CT 06001
    (800)464-2866
  • 12.-15.Rank: #12-15
    Christ School
    Christ School Photo
    All-Boys  (Episcopal)
    11

    Grades: 8-12
    500 Christ School Road
    Asheville, NC 28704
    (828)684-6232
  • 12.-15.Rank: #12-15
    Marine Military Academy
    Marine Military Academy Photo - All Marine Military Academy (MMA)Cadets participate in public parades held throughout the year. All parades are held on the MMA Parade Grounds directly adjacent to the Iwo Jima Monument, located at 320 Iwo Jima Boulevard in Harlingen, next to Valley International Airport. MMA’s Honor Band and Silent Drill Team performs at most parades with the exception of summer camp and introductory training graduations.
    All-Boys 
    11

    Grades: 7-12, PG
    320 Iwo Jima Blvd
    Harlingen, TX 78550
  • 15.-24.Rank: #15-24
    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 
    12
    Grades: 11-12, PG
    PO Box 292
    North Bridgton, ME 04057
    (207)647-3322
  • 15.-24.Rank: #15-24
    Camden Military Academy
    Camden Military Academy Photo - A Proud Family!
    All-Boys 
    (10)
    12

    Grades: 7-12, PG
    520 Hwy. 1 North
    Camden, SC 29020
    (800)948-6291
  • 15.-24.Rank: #15-24
    Cardigan Mountain School
    Cardigan Mountain School Photo - Digital Arts Media Lab
    All-Boys 
    12

    Grades: 6-9
    62 Alumni Drive
    Canaan, NH 03741
    (603)523-3548
  • 15.-24.Rank: #15-24
    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)
    12

    Grades: 7-12, PG
    P.O. 278, 4744 James Madison Hwy
    Fork Union, VA 23055
    (800)462-3862
  • 15.-24.Rank: #15-24
    Hillside School
    Hillside School Photo
    All-Boys 
    12

    Grades: 5-9
    404 Robin Hill Street
    Marlborough, MA 01752
    (508)485-3483
  • 15.-24.Rank: #15-24
    Riverside Military Academy
    Riverside Military Academy Photo - Riverside Military Academy cadet officers stand at attention during a parade on Maginnis Field.
    All-Boys 
    (5)
    12

    Grades: 7-12
    2001 Riverside Drive
    Gainesville, GA 30501
    (800)462-2338
  • 15.-24.Rank: #15-24
    Salisbury School
    Salisbury School Photo - Salisbury School Dinning Hall
    All-Boys 
    (2)
    12

    Grades: 9-12, PG
    251 Canaan Road
    Salisbury, CT 06068
    (860)435-5732
  • 15.-24.Rank: #15-24
    Southern Preparatory Academy
    Southern Preparatory Academy Photo - Strength of Brotherhood: Southern Prep provides young men with a unique opportunity to benefit from an environment that fosters the development of these bonds: where cadets share a common goal of not only becoming leaders but also becoming part of a team.
    All-Boys 
    12

    Grades: 6-12
    174 Ward Circle
    Camp Hill, AL 36850
    (256)675-6260
  • 15.-24.Rank: #15-24
    Trinity-Pawling School
    Trinity-Pawling School Photo - We teach our art classes in a step-by-step manner-how to match pitch, to throw a pot, to draw a line. Even if you think you're not artistic, you'll build on these skills over time so you can develop your own creativity and awaken the artist in you.
    All-Boys  (Episcopal)
    12

    Grades: 8-12, PG | 7-12, PG (day)
    700 Route 22
    Pawling, NY 12564
    (845)855-4825
  • 24.-25.Rank: #24-25
    The Kiski School
    The Kiski School Photo - The Swank Student Center
    All-Boys 
    13
    Grades: 9-12, PG
    1888 Brett Lane
    Saltsburg, PA 15681
    (724)639-8035
  • 25.-28.Rank: #25-28
    McCallie School
    McCallie School Photo - Through coordinate activities with our sister school GPS, our students interact with young women on a daily basis.
    All-Boys 
    (2)
    14
    Grades: 9-12, PG | 6-12, PG (day)
    500 Dodds Avenue
    Chattanooga, TN 37404
    (800)234-2163
  • 25.-28.Rank: #25-28
    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 
    (3)
    14

    Grades: 7-12, PG
    204 Grand Street
    Mexico, MO 65265
    (573)581-1776
  • 25.-28.Rank: #25-28
    Mount Michael Benedictine School
    Mount Michael Benedictine School Photo - Mount Michael Benedictine School
    All-Boys  (Catholic)
    14

    Grades: 9-12
    22520 Mount Michael Road
    Elkhorn, NE 68022
    (402)238-1457
  • 28.-33.Rank: #28-33
    Army and Navy Academy
    Army and Navy Academy Photo
    All-Boys 
    (4)
    15
    Grades: 7-12
    2605 Carlsbad Blvd.
    Carlsbad, CA 92008
    (888)762-2338
  • 28.-33.Rank: #28-33
    Robert Land Academy
    Robert Land Academy Photo - A strong focus on foundational skills applied in academic courses provides students with opportunities for Canadian, US and world-wide university and college entrance. The Academy also offers foundational courses in English and Math for grades 5-10. These remedial courses allow boys who are behind in core subjects to make significant gains and catch up academically.
    All-Boys 
    15

    Grades: 5-12
    6727 South Chippawa Rd
    Wellandport, Ontario, Canada 12345
    (905)386-6203
  • 28.-33.Rank: #28-33
    St. Catherine's Academy
    St. Catherine's Academy Photo - St. Catherine's recognizes the important role that athletics plays in the development of a well-rounded young man. Our physical education program and championship athletic teams seek to develop skills and capabilities that reach far beyond the athletic field.
    All-Boys  (Catholic)
    15

    Grades: 4-8 | K-8 (day)
    215 N. Harbor Blvd.
    Anaheim, CA 92805
    (714)772-1363
  • 28.-33.Rank: #28-33
    Subiaco Academy
    Subiaco Academy Photo - Subiaco Abbey and Academy
    All-Boys  (Catholic)
    (1)
    15

    Grades: 7-12
    405 North Subiaco Avenue
    Subiaco, AR 72865
    (479)934-1034
  • 28.-33.Rank: #28-33
    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)
    15

    Grades: 7-12
    1001 Eagle Road
    Wayne, PA 19087
    (610)989-1200
  • 33.-40.Rank: #33-40
    Georgetown Preparatory School
    Georgetown Preparatory School Photo - Boland Hall is the home to many of Prep's 110 resident students. Our campus is less than 5 miles from the Nation's Capital
    All-Boys  (Catholic)
    (3)
    >15
    Grades: 9-12
    10900 Rockville Pike
    North Bethesda, MD 20852
    (301)214-1215
  • 33.-40.Rank: #33-40
    Orchard Lake St. Mary's Preparatory
    Orchard Lake St. Mary's Preparatory Photo - Orchard Lake St. Mary's Preparatory Campus
    All-Boys  (Catholic)
    (2)
    >15

    Grades: 9-12
    3535 Commerce Rd.
    Orchard Lake, MI 48324
    (248)683-0517
  • 33.-40.Rank: #33-40
    Chaminade College Preparatory School
    Chaminade College Preparatory School Photo - Chaminade is located 20 minutes outside of Downtown St. Louis in the lovely, 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)
    >15

    Grades: 6-12
    425 South Lindbergh Blvd.
    St. Louis, MO 63131
    (314)692-6640
  • 33.-40.Rank: #33-40
    Amerigo Maryland, Archbishop Curley High School
    Amerigo Maryland, Archbishop Curley High School Photo - Archbishop Curley High School is an all-male school offering students a strong academic program designed for 21st century learners.
    All-Boys  (Catholic)
    >15

    Grades: 9-12
    3701 Sinclair Lane
    Baltimore, MD 21213
    (312)416-1955
  • 33.-40.Rank: #33-40
    St. Francis High School
    St. Francis High School Photo - Friars' Hall
    All-Boys  (Catholic)
    >15

    Grades: 9-12
    4129 Lake Shore Road
    Hamburg, NY 14075
    (716)627-1200
  • 33.-40.Rank: #33-40
    St. George's School, Vancouver
    St. George's School, Vancouver Photo - St. George's School mission: Building Fine Young Men. One Boy at a Time.
    All-Boys 
    >15

    Grades: 8-12 | 1-12 (day)
    4175 West 29th Avenue
    Vancouver, BC, Canada 00001
    (604)221-3915
  • 33.-40.Rank: #33-40
    Saint Stanislaus High School
    Saint Stanislaus High School Photo - Mr. Anderson's chemistry class gets to perform cool experiments!
    All-Boys  (Catholic)
    >15

    Grades: 7-12
    304 S. Beach Blvd.
    Bay St. Louis, MS 39520
    (228)467-9057

Top School Listings by Category (2019-20)

Compare among: 

Selectivity
Lowest acceptance rates
Student Test Scores
Highest average SAT scores
Student Test Scores
Highest average SSAT score
Affordability
Least expensive tuition
Affordability
Highest percentage of students on financial aid
Student Attention
Smallest average class sizes
Student Attention
Lowest teacher:student ratio
Faculty Education
Highest percentage of faculty with advanced degrees
Boarding Focus
Highest percentage of boarding students
Diversity
Highest percentage of international students
Diversity
Highest percentage of students of color
Community Size
Largest student body (number of students)
Community Size
Smallest student body (number of students)
School Resources
Largest endowments
School Resources
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Offering Breadth
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Offering Breadth
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Offering Breadth
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