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-Girls 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-Girls Schools (out of 24 schools)

Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 1.-4.Rank: #1-4
    Academy of the Holy Family
    Academy of the Holy Family Photo - April 2019 Retreat
    All-Girls  (Catholic)
    8
    Grades: 9-12
    54 W. Main Street Box 691
    BalticCT 06330
    (860)822-6279
  • 1.-4.Rank: #1-4
    Chatham Hall
    Chatham Hall Photo - Whether you ve been riding your whole life or have always wanted to you can find a place in our program. The Chatham Hall campus is home to more than 30 horses, three teaching arenas, a permanent Hunter Trials course, and plenty of trails. We teach hunt seat the Modern Forward Riding System with an emphasis on horse and rider
    All-Girls  (Episcopal)
    8

    Grades: 9-12
    800 Chatham Hall Circle
    ChathamVA 24531
    (434)432-5516
  • 1.-4.Rank: #1-4
    Oldfields School
    Oldfields School Photo - Our renowned equestrian program takes learning out of the classroom and into the barn.
    All-Girls 
    8

    Grades: 8-12
    1500 Glencoe Road
    Sparks GlencoeMD 21152
    (410)472-4800
  • 1.-4.Rank: #1-4
    St. Timothy's School
    St. Timothy's School Photo - The Commons is equal parts living room and dining room. The newest building on campus, the Commons is a gathering space that houses the dining hall and the new Redlands Cafe.
    All-Girls  (Episcopal)
    8

    Grades: 9-12, PG
    8400 Greenspring Avenue
    StevensonMD 21153
    (410)486-7401
  • 5.-7.Rank: #5-7
    Grier School
    Grier School Photo
    All-Girls 
    9
    Grades: 7-12, PG
    2522 Grier School Road
    TyronePA 16686
    (814)684-3000
  • 5.-7.Rank: #5-7
    Purnell School
    Purnell School Photo - Ninth grade students work on creating their own Advice Blog during their Seminar Class. Their blog is a part of Purnell's award-winning Affinities Program.
    All-Girls 
    9

    Grades: 9-12, PG
    51 Pottersville Road, P.O. Box 500
    PottersvilleNJ 07979
    (908)439-4009
  • 5.-7.Rank: #5-7
    9

    Grades: 7-12, PG
    574 Bernardston Road
    GreenfieldMA 01301
    (413)774-2711
  • 8.-12.Rank: #8-12
    Foxcroft School
    Foxcroft School Photo - Foxcroft School House
    All-Girls 
    10
    Grades: 9-12, PG
    22407 Foxhound Lane
    MiddleburgVA 20117
    (540)687-4340
  • 8.-12.Rank: #8-12
    Linden Hall School
    Linden Hall School Photo
    All-Girls 
    10

    Grades: 6-12, PG
    212 East Main Street
    LititzPA 17543
    (717)626-8512
  • 8.-12.Rank: #8-12
    Miss Hall's School
    Miss Hall's School Photo - The Athletic Department at Miss Hall's instills in student-athletes the values of fitness, teamwork, and competition while inspiring each girl to master physical skills, envision her potential, strive to attain goals, build confidence, and experience the power of community pride.
    All-Girls 
    10

    Grades: 9-12, PG
    492 Holmes Road, PO Box 1166
    PittsfieldMA 01201
    (413)499-1300
  • 8.-12.Rank: #8-12
    10

    Grades: 9-12
    60 Main Street
    FarmingtonCT 06032
    (860)409-3530
  • 8.-12.Rank: #8-12
    St. Margaret's School
    St. Margaret's School Photo - BELIEVE IN SOMETHING GREATER. * What kind of person will you be? Honest? Trustworthy? Responsible? * Our honor code inspires a culture of honesty and promotes trust in one another. * We have confidence that you will do the right thing, even when no one is watching. * We believe in you.
    All-Girls  (Episcopal)
    10

    Grades: 8-12, PG
    PO Box 158, 444 Water Lane
    TappahannockVA 22560
    (804)443-3357
  • 13.-14.Rank: #13-14
    Buffalo Seminary
    Buffalo Seminary Photo - Our one-to-one tablet computer program gives each girl instant access to a wealth of information.
    All-Girls 
    11
    Grades: 9-12, PG
    205 Bidwell Parkway
    BuffaloNY 14222
    (716)885-6780
  • 13.-14.Rank: #13-14
    Westover School
    Westover School Photo
    All-Girls 
    11

    Grades: 9-12
    1237 Whittemore Rd.
    MiddleburyCT 06762
    (203)577-4521
  • 15.-19.Rank: #15-19
    Dana Hall School
    Dana Hall School Photo - Experimentation. Exploration. Creativity. Dana Hall`s visual artists are sensitive observers of themselves and the world around them.
    All-Girls 
    12
    Grades: 9-12 | 5-12 (day)
    45 Dana Road
    WellesleyMA 02482
    (781)489-1331
  • 15.-19.Rank: #15-19
    12

    Grades: 9-12, PG | 6-12, PG (day)
    230 Bushy Hill Road
    SimsburyCT 06070
    (860)408-4200
  • 15.-19.Rank: #15-19
    12

    Grades: 9-12, PG | 5-12, PG (day)
    4800 139th Avenue SE
    BellevueWA 98006
    (425)641-0700
  • 15.-19.Rank: #15-19
    The Madeira School
    The Madeira School Photo - Madeira's 376-acre campus in McLean, Virginia, overlooks the Potomac River from a perch just 12 miles northwest of Washington, D.C.
    All-Girls 
    12

    Grades: 9-12, PG
    8328 Georgetown Pike
    McLeanVA 22102-1200
    (703)556-8273
  • 15.-19.Rank: #15-19
    Santa Catalina School
    Santa Catalina School Photo - Volleyball in the Gym
    All-Girls  (Catholic)
    12

    Grades: 9-12
    1500 Mark Thomas Drive
    MontereyCA 93940
    (831)655-9356
  • 20.Rank: #20
    Saint Mary's School
    Saint Mary's School Photo - Saint Mary's School, established in 1842, is an independent, Episcopal, college-preparatory boarding and day school for girls in grades 9-12 in Raleigh, North Carolina. It is the fourth oldest girls' boarding/day school in the United States.
    All-Girls  (Episcopal)
    13
    Grades: 9-12
    900 Hillsborough Street
    RaleighNC 27603
    (919)424-4100
  • 21.-22.Rank: #21-22
    15
    Grades: 8-12 | Pre-K-12 (day)
    300 Garrison Forest Road
    Owings MillsMD 21117
    (410)559-3111
  • 21.-22.Rank: #21-22
    The Hockaday School
    The Hockaday School Photo
    All-Girls 
    15

    Grades: 8-12 | Pre-K-12 (day)
    11600 Welch Road
    DallasTX 75229
    (214)360-6526
  • 23.-24.Rank: #23-24
    Branksome Hall
    Branksome Hall Photo
    All-Girls 
    >15
    Grades: 7-12 | Pre-K-12 (day)
    10 Elm Avenue
    TorontoCanada 00000
    (416)920-9741
  • 23.-24.Rank: #23-24
    >15

    Grades: 6-12 | Pre-K-12 (day)
    234 Global edu-ro, Daejeong-eup, Seogwipo-si
    Jeju-doSouth Korea 63644
    82649025072

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