Smallest Average Class Size

All Schools
All Schools 
400+ students
400+ students 
200-400 students
200-400 students 
< 200 students
< 200 students 
More
  • Among "All-Girls Schools", view the boarding schools with the smallest average class sizes (2018-19).
  • 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 (2018-19)

Among All-Girls Schools (out of 25 schools)

Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 1.-3.
    Academy of the Holy Family
    Academy of the Holy Family Photo - March for Life Rally in Washington DC
    All-Girls  (Catholic)
    8
    Grades: 9-12
    54 W. Main Street Box 691
    Baltic, CT 06330
    (860)822-6279
  • 1.-3.
    Chatham Hall
    Chatham Hall Photo - Chatham Hall has transformed the 12,256-square-foot Edmund J. and Lucy Lee Library into a dynamic learning commons. It serves as an academic and technological hub for collaborative learning, research, study, and teaching on campus. Versatile meeting and study spaces promote an engaging atmosphere for learning, and integration of more advanced technology opens doors for creative new teaching methods. The library
    All-Girls  (Episcopal)
    (3)
    8

    Grades: 9-12
    800 Chatham Hall Circle
    Chatham, VA 24531
    (434)432-5516
  • 1.-3.
    Oldfields School
    Oldfields School Photo - STUDENTS* 180 girls from 28 states and 11 countries* 80% boarding, 20% day* Opportunities for each girl to develop and pursue leadership opportunities* Opportunities to try new things in a supportive and encouraging environment(PICTURE: Roommates from Jamaica and the United States)
    All-Girls 
    (9)
    8

    Grades: 8-12, PG
    1500 Glencoe Road
    Sparks Glencoe, MD 21152
    (410)472-4800
  • 4.-7.
    Grier School
    Grier School Photo
    All-Girls 
    (5)
    9
    Grades: 7-12, PG
    2522 Grier School Road
    Tyrone, PA 16686
    (814)684-3000
  • 4.-7.
    Purnell School
    Purnell School Photo - Girls running for cross country, one of Purnell's many non-competitive sports.
    All-Girls 
    (1)
    9

    Grades: 9-12, PG
    51 Pottersville Road, P.O. Box 500
    Pottersville, NJ 07979
    (908)439-4009
  • 4.-7.
    St. Timothy's School
    St. Timothy's School Photo - Completed in 2012, Dixon Hall is our state-of-the-art academic building. The technology-rich facility features the Taft Lecture Hall, the Coleman World Languages and Cultures Center, and a Center for Learning and Teaching.
    All-Girls  (Episcopal)
    (2)
    9

    Grades: 9-12, PG
    8400 Greenspring Avenue
    Stevenson, MD 21153
    (410)486-7401
  • 4.-7.
    Stoneleigh-Burnham School
    Stoneleigh-Burnham School Photo - Stoneleigh-Burnham Summer Programs provide a dynamic summer educational experience, full of fun and adventure. Girls come to Stoneleigh-Burnham from near and far to explore, discover and engage, while spending their summer at one of the longest-established independent girls?' schools in the country.
    All-Girls 
    (15)
    9

    Grades: 7-12, PG
    574 Bernardston Road
    Greenfield, MA 01301
    (413)774-2711
  • 8.-12.
    Foxcroft School
    Foxcroft School Photo - Foxcroft School House
    All-Girls 
    (7)
    10
    Grades: 9-12, PG
    P.O. Box 5555
    Middleburg, VA 20118
    (540)687-4340
  • 8.-12.
    Linden Hall School
    Linden Hall School Photo
    All-Girls 
    (4)
    10

    Grades: 6-12, PG
    212 East Main Street
    Lititz, PA 17543
    (717)626-8512
  • 8.-12.
    Miss Hall's School
    Miss Hall's School Photo - We encourage a student's life-long relationship with the arts, challenging her to find her own confident artistic voice and to gain a respect for artistic tradition based on our belief that the arts are an intrinsic part of the human experience.
    All-Girls 
    (3)
    10

    Grades: 9-12, PG
    492 Holmes Road, PO Box 1166
    Pittsfield, MA 01201
    (413)499-1300
  • 8.-12.
    Miss Porter's School
    Miss Porter's School Photo
    All-Girls 
    (4)
    10

    Grades: 9-12
    60 Main Street
    Farmington, CT 06032
    (860)409-3530
  • 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)
    (4)
    10

    Grades: 8-12, PG
    PO Box 158, 444 Water Lane
    Tappahannock, VA 22560
    (804)443-3357
  • 13.-14.
    Buffalo Seminary
    Buffalo Seminary Photo - Individualized college counseling helps each student explore options that are right for her.
    All-Girls 
    11
    Grades: 9-12, PG
    205 Bidwell Parkway
    Buffalo, NY 14222
    (716)885-6780
  • 13.-14.
    Westover School
    Westover School Photo - Welcome to Westover School!
    All-Girls 
    (12)
    11

    Grades: 9-12
    1237 Whittemore Rd., P.O. Box 847
    Middlebury, CT 06762
    (203)577-4521
  • 15.-18.
    Dana Hall School
    Dana Hall School Photo - Step Sing - one of the many special traditions at Dana Hall. They're a little hard to explain, but traditions play an important role in life at Dana Hall School, serving not only as symbols of the past, but also staples in the present. These special activities also provide amazing opportunities for teamwork and organization.
    All-Girls 
    (4)
    12
    Grades: 9-12
    45 Dana Road
    Wellesley, MA 02482
    (781)489-1331
  • 15.-18.
    The Ethel Walker School
    The Ethel Walker School Photo
    All-Girls 
    12

    Grades: 9-12, PG | 6-12, PG (day)
    230 Bushy Hill Road
    Simsbury, CT 06070
    (860)408-4200
  • 15.-18.
    The Madeira School
    The Madeira School Photo - Get into character in one of our annual theater productions.
    All-Girls 
    (1)
    12

    Grades: 9-12, PG
    8328 Georgetown Pike
    McLean, VA 22102-1200
    (703)556-8273
  • 15.-18.
    Santa Catalina School
    Santa Catalina School Photo - Studio Art
    All-Girls  (Catholic)
    (1)
    12

    Grades: 9-12
    1500 Mark Thomas Drive
    Monterey, CA 93940
    (831)655-9356
  • 19.
    Saint Mary's School
    Saint Mary's School Photo - Saint Mary's School is dedicated to the academic excellence and personal achievement of girls with a mission to prepare girls for college and life. The school's academic program focuses on giving girls what they need to grow as lifelong learners, building on the Habits of a Lifelong Learner: critical thinking, communication and character.
    All-Girls  (Episcopal)
    13
    Grades: 9-12
    900 Hillsborough Street
    Raleigh, NC 27603
    (919)424-4100
  • 20.-21.
    Garrison Forest School
    Garrison Forest School Photo - The Head of Garrison Forest School lives in Lochinvar. It is also the site of special events such as Reunion and prom.
    All-Girls 
    15
    Grades: 8-12 | Pre-K-12 (day)
    300 Garrison Forest Road
    Owings Mills, MD 21117
    (410)559-3111
  • 20.-21.
    The Hockaday School
    The Hockaday School Photo
    All-Girls 
    15

    Grades: 8-12 | Pre-K-12 (day)
    11600 Welch Road
    Dallas, TX 75229
    (214)360-6526
  • 22.-25.
    Branksome Hall
    Branksome Hall Photo
    All-Girls 
    >15
    Grades: 7-12 | Pre-K-12 (day)
    10 Elm Avenue
    Toronto, Canada 00000
    (416)920-9741
  • 22.-25.
    Flintridge Sacred Heart Academy
    Flintridge Sacred Heart Academy Photo
    All-Girls  (Catholic)
    >15

    Grades: 9-12
    440 St. Katherine Dr.
    La Canada Flintridge, CA 91011
    (626)685-8521
  • 22.-25.
    Branksome Hall Asia
    Branksome Hall Asia Photo - Empowering through Science
    All-Girls 
    >15

    Grades: 6-12 | Pre-K-12 (day)
    234 Global edu-ro, Daejeong-eup, Seogwipo-si
    Jeju-do, South Korea 63644
    82649025073
  • 22.-25.
    Amerigo Maryland, Mercy High School
    Amerigo Maryland, Mercy High School Photo - Students at Amerigo Maryland can participate in one of Mercy High School's 13 sports teams.
    All-Girls  (Catholic)
    >15

    Grades: 9-12
    1300 East Northern Parkway
    Baltimore, MD 21239
    (312)416-1955

Top School Listings by Category (2018-19)

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
Highest endowment per student
Offering Breadth
Most sports offered
Offering Breadth
Most extracurriculars offered
Offering Breadth
Most AP/advanced courses offered
School History
Oldest founding date
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