Boarding School Review - Established 2003
Branksome Hall
Garrison Forest School
Dana Hall School

Largest Student Body

Among "All-Girls Schools", view the boarding schools with the largest student bodies (2026).
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.
Branksome Hall
Garrison Forest School
Dana Hall School
Emma Willard School
Miss Porter's School
The Madeira School
Grier School
The Ethel Walker School
Santa Catalina School
Westover School
St. Timothy's School
Miss Hall's School
Foxcroft School
Buffalo Seminary
Chatham Hall
Stoneleigh-Burnham School
Oldfields School
St. Margaret's School
Academy of the Holy Family
# Students Range: 40 900 Avg. # Students: 270

Largest Student Body

Among All-Girls Schools (out of 20 schools)

Sorted by range (alphabetically within range)
Boarding School
# Students
Grades
Location
Rank: #1-21.-2
Branksome Hall
Branksome Hall Photo
All-Girls
# Students: 900
Grades: 7-12  | PK-12 (day)
10 Elm Avenue
Toronto, Canada m4w 1n4
(416) 920-9741
Rank: #2-32.-3
Garrison Forest School
Garrison Forest School Photo - One of the entrances to Garrison Forest School.
All-Girls
# Students: 548
Grades: 8-12  | PK-12 (day)
300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111
Rank: #3-43.-4
Dana Hall School
Dana Hall School Photo - The Dana Hall Dragons are ready to roar.
All-Girls
(6)
# Students: 484
Grades: 9-12  | 5-12 (day)
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
Rank: #4-54.-5
Emma Willard School
Emma Willard School Photo
All-Girls
(9)
# Students: 355
Grades: 9-12, PG
285 Pawling Avenue
Troy, NY 12180
(518) 833-1320
Rank: #5-65.-6
Miss Porter's School
Miss Porter's School Photo
All-Girls
(5)
# Students: 332
Grades: 9-12
60 Main Street
Farmington, CT 06032
(860) 409-3530
Rank: #6-76.-7
The Madeira School
The Madeira School Photo - Capitol Hill internships in the offices of senators and representatives are a hallmark of the junior year at Madeira
All-Girls
(2)
# Students: 324
Grades: 9-12
8328 Georgetown Pike
McLean, VA 22102
(703) 556-8273
Rank: #7-97.-9
Saint Mary's School
All-Girls (Episcopal)
(1)
# Students: 296
Grades: 9-12
900 Hillsborough Street
Raleigh, NC 27603
(919) 424-4100
Rank: #8-108.-10
Grier School
Grier School Photo
All-Girls
(6)
# Students: 275
Grades: 7-12, PG  | 5-12, PG (day)
2522 Grier School Road
Tyrone, PA 16686
(814) 684-3000
Rank: #9-119.-11
The Ethel Walker School
The Ethel Walker School Photo - Beaver Brook Building - This building houses many of our academic classes as well as administrative offices, meeting spaces, art rooms, and our computer lab.
All-Girls
# Students: 236
Grades: 7-12, PG  | 6-12, PG (day)
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
Rank: #10-1210.-12
Santa Catalina School
Santa Catalina School Photo - Come visit our beautiful campus in Monterey, California! Call the admission office at 831.655.9356 or email admission@santacatalina.org to schedule your visit.
All-Girls (Catholic)
(1)
# Students: 230
Grades: 9-12
1500 Mark Thomas Drive
Monterey, CA 93940
(831) 655-9356
Rank: #11-1311.-13
Westover School
Westover School Photo
All-Girls
(12)
# Students: 188
Grades: 9-12
1237 Whittemore Rd.
Middlebury, CT 06762
(203) 577-4521
Rank: #12-1412.-14
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)
# Students: 185
Grades: 9-12, PG
8400 Greenspring Avenue
Stevenson, MD 21153
(410) 486-7401
Rank: #13-1513.-15
Miss Hall's School
Miss Hall's School Photo - A talented, supportive community of learners awaits you at MHS. Our faculty are dedicated mentors who are passionate about their subjects and creative in their teaching, unafraid to ditch the textbook in favor of collaborative, project-based learning.
All-Girls
(4)
# Students: 178
Grades: 9-12, PG
492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300
Rank: #14-1614.-16
Foxcroft School
Foxcroft School Photo - Schoolhouse
All-Girls
(9)
# Students: 175
Grades: 9-12, PG
22407 Foxhound Lane
Middleburg, VA 20117
(540) 687-4340
Rank: #15-1715.-17
Buffalo Seminary
Buffalo Seminary Photo - Our oldest tradition may be forward thinking but we are anchored in many other traditions too. Roses and white dresses for commencement. Our Social & Academic Honor Code. Morning Meeting to start the day. ..
All-Girls (non-sectarian)
# Students: 160
Grades: 9-12, PG
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
Rank: #16-1916.-19
Chatham Hall
Chatham Hall Photo - Chatham Hall's campus was built to promote community and collaboration.
All-Girls (Episcopal)
(5)
# Students: 150
Grades: 9-12
800 Chatham Hall Circle
Chatham, VA 24531
(434) 432-5516
Rank: #16-1916.-19
Stoneleigh-Burnham School
Stoneleigh-Burnham School Photo - Our challenging and supportive learning environment encourages appropriate risk-taking by providing a safe space for making mistakes. Stoneleigh-Burnham School offers the International Baccalaureate (IB) Diploma Programme.
All-Girls
(15)
# Students: 150
Grades: 7-12, PG
574 Bernardston Road
Greenfield, MA 01301
(413) 774-2711
Rank: #18-2118.-21
Oldfields School
Oldfields School Photo - Oldfields School`s Mission is to embrace each student`s authentic self, educate through collaboration, empower the individual voice, and inspire confidence and continual growth, leading to a life of purpose.
All-Girls (non-sectarian)
(12)
# Students: 100
Grades: 8-12, PG
1500 Glencoe Road
Sparks Glencoe, MD 21152
(443) 662-1009
Rank: #18-2118.-21
St. Margaret's School
St. Margaret's School Photo - College Preparedness: Challenge yourself with a collaborative STEAM curriculum and rigorous academics, including Advanced Placement and Dual Enrollment courses to start earning college credit. Our college counselor will help you to navigate the different colleges and degree fields to best prepare you for life after graduation from St. Margaret's.
All-Girls (Episcopal)
(7)
# Students: 100
Grades: 8-12, PG
PO Box 158, 444 Water Lane
Tappahannock, VA 22560
(804) 443-3357
Rank: #20-2220.-22
Academy of the Holy Family
Academy of the Holy Family Photo - Ambassadors Club
All-Girls (Roman Catholic)
# Students: 40
Grades: 9-12
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279

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