Among "All-Girls Schools", view the boarding schools with the lowest student:teacher ratio (2025-26).
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: 4:1
12:1
Avg. S:T Ratio: 6:1
Lowest Student-Teacher Ratio
Among All-Girls Schools (out of 20 schools)
Sorted by range (alphabetically within range)
Boarding School
S:T Ratio
Grades
Location
Rank: #1-31.-3
Academy of the Holy Family![Academy of the Holy Family Photo - Ambassadors Club Academy of the Holy Family Photo - Ambassadors Club]()

All-Girls (Catholic)
S:T Ratio: 4:1
Grades: 9-12
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279
Baltic, CT 06330
(860) 822-6279
Rank: #1-31.-3
S:T Ratio: 4:1
Grades: 9-12
8328 Georgetown Pike
McLean, VA 22102
(703) 556-8273
McLean, VA 22102
(703) 556-8273
Rank: #1-31.-3
S:T Ratio: 4:1
Grades: 9-12, PG
1237 Whittemore Rd.
Middlebury, CT 06762
(203) 577-4521
Middlebury, CT 06762
(203) 577-4521
Rank: #4-64.-6
S:T Ratio: 5:1
Grades: 9-12, PG
22407 Foxhound Lane
Middleburg, VA 20117
(540) 687-4340
Middleburg, VA 20117
(540) 687-4340
Rank: #4-64.-6
Linden Hall School for Girls![Linden Hall School for Girls Photo Linden Hall School for Girls Photo]()

All-Girls
S:T Ratio: 5:1
Grades: 6-12, PG
212 E Main Street
Lititz, PA 17543
(717) 626-8512
Lititz, PA 17543
(717) 626-8512
Rank: #4-64.-6
S:T Ratio: 5:1
Grades: 8-12, PG
1500 Glencoe Road
Sparks Glencoe, MD 21152
(443) 662-1009
Sparks Glencoe, MD 21152
(443) 662-1009
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 9-12
800 Chatham Hall Circle
Chatham, VA 24531
(434) 432-5516
Chatham, VA 24531
(434) 432-5516
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 9-12 | 5-12 (day)
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
Wellesley, MA 02482
(781) 489-1331
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 9-12, PG
285 Pawling Avenue
Troy, NY 12180
(518) 833-1320
Troy, NY 12180
(518) 833-1320
Rank: #7-147.-14
The Ethel Walker School![The Ethel Walker School Photo The Ethel Walker School Photo]()

All-Girls
S:T Ratio: 6:1
Grades: 7-12, PG
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
Simsbury, CT 06070
(860) 408-4200
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 7-12, PG | 5-12, PG (day)
2522 Grier School Road
Tyrone, PA 16686
(814) 684-3000
Tyrone, PA 16686
(814) 684-3000
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 9-12, PG
492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300
Pittsfield, MA 01201
(413) 499-1300
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 9-12
60 Main Street
Farmington, CT 06032
(860) 409-3530
Farmington, CT 06032
(860) 409-3530
Rank: #7-147.-14
S:T Ratio: 6:1
Grades: 7-12, PG
574 Bernardston Road
Greenfield, MA 01301
(413) 774-2711
Greenfield, MA 01301
(413) 774-2711
Rank: #1515
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. .. 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
S:T Ratio: 7:1
Grades: 9-12, PG
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
Buffalo, NY 14222
(716) 885-6780
Rank: #16-1816.-18
S:T Ratio: 8:1
Grades: 9-12
900 Hillsborough Street
Raleigh, NC 27603
(919) 424-4100
Raleigh, NC 27603
(919) 424-4100
Rank: #16-1816.-18
S:T Ratio: 8:1
Grades: 9-12, PG
8400 Greenspring Avenue
Stevenson, MD 21153
(410) 486-7401
Stevenson, MD 21153
(410) 486-7401
Rank: #16-1816.-18
S:T Ratio: 8:1
Grades: 9-12
1500 Mark Thomas Drive
Monterey, CA 93940
(831) 655-9356
Monterey, CA 93940
(831) 655-9356
Rank: #1919
Garrison Forest School![Garrison Forest School Photo - One of the entrances to Garrison Forest School. Garrison Forest School Photo - One of the entrances to Garrison Forest School.]()

All-Girls
S:T Ratio: 9:1
Grades: 8-12 | PK-12 (day)
300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111
Owings Mills, MD 21117
(410) 559-3111
Rank: #2020
S:T Ratio: 12:1
Grades: 7-12 | PK-12 (day)
10 Elm Avenue
Toronto, Canada m4w 1n4
(416) 920-9741
Toronto, Canada m4w 1n4
(416) 920-9741
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