BoardingSchoolReview.com lists 19 boarding schools as Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) members, serving 6,359 students. Learn more about the association at Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS).
Membership data comes from the schools themselves and from published association directories. See all school associations.
Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) Member Schools (2026-27)
School
Location
Quick Facts
International (on a Tall Ship)
Kristiansand, Norway 4610
3475677083
Kristiansand, Norway 4610
3475677083
Gr: 11-12, PG | 72 students Student-teacher ratio: 7:1 Avg. class size: 12 students Tuition listed
582 Columbus Ave
Thornwood, NY 10594
(914) 495-6056
Thornwood, NY 10594
(914) 495-6056
Gr: 9-12 | 290 students Student-teacher ratio: 8:1 Avg. class size: 15 students Tuition listed
1690 Newtown Langhorne Road
Newtown, PA 18940
(215) 579-6547
Newtown, PA 18940
(215) 579-6547
Gr: 9-12 | 540 students Student-teacher ratio: 7:1 Avg. class size: 13 students Tuition listed
2522 Grier School Road
Tyrone, PA 16686
(814) 684-3000
Tyrone, PA 16686
(814) 684-3000
Gr: 7-12, PG | 5-12, PG (day) | 235 students Student-teacher ratio: 6:1 Avg. class size: 9 students Acceptance rate: 50% Tuition listed
860 Beech Street
Pottstown, PA 19464
(610) 326-1000
Pottstown, PA 19464
(610) 326-1000
Gr: 9-12, PG | 539 students Student-teacher ratio: 7:1 Avg. class size: 10 students Acceptance rate: 25% Tuition listed
176 Edgerstoune Road
Princeton, NJ 08540
(609) 921-7600
Princeton, NJ 08540
(609) 921-7600
Gr: 9-12, PG | 6-12, PG (day) | 700 students Student-teacher ratio: 8:1 Avg. class size: 14 students Tuition listed
6385 Beach Rd
Eden Prairie, MN 55344
(952) 918-1800
Eden Prairie, MN 55344
(952) 918-1800
Gr: 8-12 | PK-12 (day) | 320 students Student-teacher ratio: 10:1 Tuition listed
Mühlentalstrasse 280
Schaffhausen, Switzerland 8200
41526241707
Schaffhausen, Switzerland 8200
41526241707
Gr: 9-12 | PK-12 (day) | 280 students Student-teacher ratio: 6:1 Avg. class size: 17 students Tuition listed
255 Olympic Valley Road | P.O. Box 2180
Olympic Valley, CA 96146
(801) 336-0753
Olympic Valley, CA 96146
(801) 336-0753
Gr: 9-12 | 5-12 (day) | 35 students Student-teacher ratio: 7:1 Avg. class size: 7 students Acceptance rate: 80% Tuition listed
1888 Brett Lane
Saltsburg, PA 15681
(724) 639-8035
Saltsburg, PA 15681
(724) 639-8035
Gr: 9-12, PG | 205 students Student-teacher ratio: 6:1 Avg. class size: 11 students Acceptance rate: 65% Tuition listed
541 Long Beach Road
Saint James, Long Island, NY 11780
(631) 686-1600
Saint James, Long Island, NY 11780
(631) 686-1600
Gr: 6-12, PG | 130 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 75% Tuition listed
2500 Main Street
Lawrenceville, NJ 08648
(609) 895-2030
Lawrenceville, NJ 08648
(609) 895-2030
Gr: 9-12, PG | 827 students Student-teacher ratio: 7:1 Avg. class size: 12 students Acceptance rate: 17% Tuition listed
1 Morris Street
New York, NY 10004
(212) 232-0266
New York, NY 10004
(212) 232-0266
Gr: 9-12 | PK-12 (day) | 700 students Student-teacher ratio: 6:1 Avg. class size: 18 students Tuition listed
212 E Main Street
Lititz, PA 17543
(717) 626-8512
Lititz, PA 17543
(717) 626-8512
Gr: 6-12, PG | 90 students Student-teacher ratio: 5:1 Avg. class size: 8 students Acceptance rate: 80% Tuition listed
100 Academy Drive
Mercersburg, PA 17236
(717) 328-6173
Mercersburg, PA 17236
(717) 328-6173
Gr: 9-12, PG | 442 students Student-teacher ratio: 4:1 Avg. class size: 12 students Acceptance rate: 29% Tuition listed
18 Goodfriend Drive
East Hampton, NY 11937
(631) 907-5400
East Hampton, NY 11937
(631) 907-5400
Gr: 6-12, PG | PK-12, PG (day) | 314 students Student-teacher ratio: 7:1 Avg. class size: 16 students Acceptance rate: 60% Tuition listed
350 Noxontown Road
Middletown, DE 19709
(302) 285-4231
Middletown, DE 19709
(302) 285-4231
Gr: 9-12 | 315 students Student-teacher ratio: 4:1 Avg. class size: 10 students Acceptance rate: 22% Tuition listed
Saint James School ![Saint James School Photo - Founded in 1842, Saint James School is a coeducational, Episcopal boarding and day school for students in grades 8-12 located in Hagerstown, Maryland.]( "Saint James School Photo - Founded in 1842, Saint James School is a coeducational, Episcopal boarding and day school for students in grades 8-12 located in Hagerstown, Maryland.")
(Episcopal)
17641 College Road
Hagerstown, MD 21740
(301) 733-9330
Hagerstown, MD 21740
(301) 733-9330
Gr: 8-12 | 260 students Student-teacher ratio: 6:1 Avg. class size: 11 students Tuition listed
1079 Firetower Road
Colora, MD 21917
(410) 658-9224
Colora, MD 21917
(410) 658-9224
Gr: 9-12, PG | 65 students Student-teacher ratio: 7:1 Avg. class size: 10 students Acceptance rate: 80% Tuition listed
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