Smallest Average Class Size
- Among "All Schools", view the boarding schools with the smallest average class sizes (2021).
- 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 (2021)
Sorted by range (alphabetically within range)
- Boarding School # Students Grades Location
- 1.-2.Rank: #1-2 4
Grades: 6-1214 Greenwood Lane
Putney, VT 05346
(802) 387-4545 - 1.-2.Rank: #1-24
Grades: 3-1028 Patey Circle
Rindge, NH 03461
(603) 899-3325 - 3.-5.Rank: #3-55
Grades: 5-12 | Pre-K-12 (day)PO Box 3050, 198 Main St.
Chester/Lake Almanor, CA 96020
(530) 596-3343 - 3.-5.Rank: #3-55
Grades: 6-12, PG93 Camp School Road
Wolfeboro, NH 03894
(603) 569-3451 - 6.-12.Rank: #6-12 6
Grades: 9-12, PG454 Academy Drive
Durango, CO 81301
(970) 247-5898 - 6.-12.Rank: #6-126
Grades: 8-12P.O. Box 116 , 242 Old Petersham Road
Hardwick, MA 01037
(413) 477-6000 - 6.-12.Rank: #6-126
Grades: 8-12, PGDorfstrasse
6085 Hasliberg Goldern, Switzerland 6085
41339729292 - 6.-12.Rank: #6-126
Grades: 9-12, PG3042 College St.
Austinburg, OH 44010
(440) 275-2811 - 6.-12.Rank: #6-126
Grades: 9-12 | 2-12 (day)P.O. Box 227
Prides Crossing, MA 01965
(978) 236-3000 - 6.-12.Rank: #6-126
Grades: 7-12, PG333 Ocean Road
Narragansett, RI 02882
(401) 788-0800 - 6.-12.Rank: #6-126
Grades: 9-12, PG1079 Firetower Road
Colora, MD 21917
(410) 658-9279 - 13.-17.Rank: #13-17 7
Grades: 9-126544 Murray Lane
Brentwood, TN 37027
(615) 507-3173 - 13.-17.Rank: #13-177
Grades: 8-12, PGPO Box 9
Hoosick, NY 12089
(518) 686-7331 - 13.-17.Rank: #13-177
Grades: 9-12, PG255 Squaw Valley Road | P.O. Box 2180
Olympic Valley, CA 96146
(530) 583-8665 - 13.-17.Rank: #13-177
Grades: 9-1261830 Sandy Ridge Road
Barnesville, OH 43713
(740) 425-3655 - 13.-17.Rank: #13-177
Grades: 6-12, PG583 Sugartown Road
Malvern, PA 19355
(610) 644-1754 - 18.-33.Rank: #18-33 8
Grades: 7-12PO Box 388
Balsam, NC 28707
(828) 456-3435 - 18.-33.Rank: #18-338
Grades: 9-1254 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279 - 18.-33.Rank: #18-338
Grades: 6-12, PG1701 Brandon Hall Drive
Atlanta, GA 30350
(770) 394-8177 - 18.-33.Rank: #18-338
Grades: 9-12800 Chatham Hall Circle
Chatham, VA 24531
(434) 432-5516 - 18.-33.Rank: #18-338
Grades: 5-121950 S. Academy Dr
Melbourne, FL 32901
(321) 723-3211 - 18.-33.Rank: #18-338
Grades: 9-12, PG476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047 - 18.-33.Rank: #18-338
Grades: 4-94382 Cascade Road
Lake Placid, NY 12946
(518) 523-9329 - 18.-33.Rank: #18-338
Grades: 8-122635 Oak Hill Road
Mouth of Wilson, VA 24363
(276) 579-2619 - 18.-33.Rank: #18-338
Grades: 8-121500 Glencoe Road
Sparks Glencoe, MD 21152
(410) 472-4800 - 18.-33.Rank: #18-338
Grades: 9-12, PG1 Rock Point Road
Burlington, VT 05408
(802) 863-1104 - 18.-33.Rank: #18-338
Grades: 8-12, PG45 Cottage Road
Oakdale, CT 06370
(860) 823-3861 - 18.-33.Rank: #18-338
Grades: 9-12, PG8400 Greenspring Avenue
Stevenson, MD 21153
(410) 486-7401 - 18.-33.Rank: #18-338
Grades: 9-121951 Delta Avenue
West Branch, IA 52358
(319) 519-1856 - 18.-33.Rank: #18-338
Grades: 9-12, PG42605 RCR 36
Steamboat Springs, CO 80487
(970) 879-1350 - 18.-33.Rank: #18-338
Grades: 6-1222000 Hwy 27
Lake Wales, FL 33859
(863) 676-6091 - 18.-33.Rank: #18-338
Grades: 9-12, PG172 Ash Street
Winchendon, MA 01475
(978) 297-4476 - 34.-45.Rank: #34-45 9
Grades: 9-12273 Mayo Drive
St. George, VA 22935
(434) 985-2811 - 34.-45.Rank: #34-459
Grades: 9-12, PG291 South Street
Williamstown, MA 01267
(413) 458-3919 - 34.-45.Rank: #34-459
Grades: 9-12Floor 2, 50/60 Station Road
Cambridge, United Kingdom CB1 2JH
+44 1223 345698 - 34.-45.Rank: #34-459
Grades: 9-12, PG110 Darrow Road
New Lebanon, NY 12125
(518) 704-2765 - 34.-45.Rank: #34-459
Grades: 9-12, PG12 Norfolk Road, P.O. Box 80
Litchfield, CT 06759
(860) 567-1802 - 34.-45.Rank: #34-459
Grades: 7-12, PG2522 Grier School Road
Tyrone, PA 16686
(814) 684-3000 - 34.-45.Rank: #34-459
Grades: 8-12, PG1000 Samuel Miller Loop
Charlottesville, VA 22903
(434) 823-4805 - 34.-45.Rank: #34-459
Grades: 8-12, PG1000 Orme School Road, H.C. 63, Box 3040
Mayer, AZ 86333
(928) 632-7601 - 34.-45.Rank: #34-459
Grades: 6-12, PG2800 Monterey Road
San Marino, CA 91108 - 34.-45.Rank: #34-459
Grades: 6-9253 Bushy Hill Road
Ivoryton, CT 06442
(860) 767-0848 - 34.-45.Rank: #34-459
Grades: 9-12, PGSuffield Academy
Suffield, CT 06078
(860) 386-4440 - 34.-45.Rank: #34-459
Grades: 9-12241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371 - 46.-82.Rank: #46-82 10
Grades: 5-12, PG | K-12, PG (day)54-230 Kamehameha Hwy
Hauula, HI 96717
(808) 670-1909 - 46.-82.Rank: #46-8210
Grades: 9-12, PG8585 Ojai Santa Paula Road
Ojai, CA 93023
(805) 646-4343 - 46.-82.Rank: #46-8210
Grades: 9-121960 Cate Mesa Road, P.O. Box 5005
Carpinteria, CA 93013
(805) 684-4127 - 46.-82.Rank: #46-8210
Grades: 9-12, PG785 Beaver Street
Waltham, MA 02452
(781) 314-0806 - 46.-82.Rank: #46-8210
Grades: 9-12, PG10 Main Street
Cheshire, CT 06410
(203) 439-7250 - 46.-82.Rank: #46-8210
Grades: 6-12, PG | 3-12, PG (day)Route de Belfort 10
Porrentruy, Switzerland 2900
+41 32 466 11 57 - 46.-82.Rank: #46-8210
Grades: 9-1218 Lehmann Way, PO Box 522
Dublin, NH 03444
(603) 563-7075 - 46.-82.Rank: #46-8210
Grades: 9-12 | 6-12 (day)P.O. Box 98, 2555 W. Highway 154
Los Olivos, CA 93441
(800) 287-9197 - 46.-82.Rank: #46-8210
Grades: 6-9271 Pine Nook Road, P.O. Box 7
Deerfield, MA 01342
(413) 774-9111 - 46.-82.Rank: #46-8210
Grades: 7-12225 S. Wayne Avenue
Waynesboro, VA 22980
(540) 946-7706 - 46.-82.Rank: #46-8210
Grades: 7-12 | K-12 (day)PO BOX 1000748 S. Main St.
Freeman, SD 57029
(605) 925-4237 - 46.-82.Rank: #46-8210
Grades: 6-12, PG280 King Street East
Brockville, Canada K6V1E2
(613) 341-9330 - 46.-82.Rank: #46-8210
Grades: 7-12, PG200 Military Drive
Chatham, VA 24531
(800) 432-2480 - 46.-82.Rank: #46-8210
Grades: 5-9 | Pre-K-9 (day)211 Indian Mountain Road
Lakeville, CT 06039
(435) 480-0871 - 46.-82.Rank: #46-8210
Grades: 9-12, PG6801 N. Wilhelm Road
La Porte, IN 46350
(219) 326-7450 - 46.-82.Rank: #46-8210
Grades: 7-12, PGChemin de la Source
Leysin, Switzerland 1854
0041244934888 - 46.-82.Rank: #46-8210
Grades: 6-12, PG212 East Main Street
Lititz, PA 17543
(717) 626-8512 - 46.-82.Rank: #46-8210
Grades: 9-124 Lustre High Circle
Lustre, MT 59225
(406) 392-5735 - 46.-82.Rank: #46-8210
Grades: 5-12, PG614 S MAIN ST
Woodstock, VA 22664
(540) 459-2167 - 46.-82.Rank: #46-8210
Grades: 5-12, PG614 South Main Street
Woodstock, VA 22664
(540) 459-2167 - 46.-82.Rank: #46-8210
Grades: 9-12, PG118 Main Street East, Merrickville, Ontario
Merrickville, Canada K0G1N
(613) 269-2064 - 46.-82.Rank: #46-8210
Grades: 9-12PO Box 8 / 5100 Figueroa Mountain Road
Los Olivos, CA 93441
(805) 688-5114 - 46.-82.Rank: #46-8210
Grades: 9-12, PG492 Holmes Road
Pittsfield, MA 01201
(413) 499-1300 - 46.-82.Rank: #46-8210
Grades: 8-1278 Academy Avenue
Cornwall-on-Hudson, NY 12520
(845) 534-3710 - 46.-82.Rank: #46-8210
Grades: 9-121500 Port Arthur Road
Ladysmith, WI 54848
(715) 532-0201 - 46.-82.Rank: #46-8210
Grades: 9-12, PG92 Northwood Road
Lake Placid, NY 12946
(518) 523-3382 - 46.-82.Rank: #46-8210
Grades: 9-12, PG200 Academy Drive
Front Royal, VA 22630
(540) 636-5484 - 46.-82.Rank: #46-8210
Grades: 5-9 | Pre-K-9 (day)P.O. Box 68 528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328 - 46.-82.Rank: #46-8210
Grades: 9-12, PG | 6-12, PG (day)63 Federal Road
Barrington, RI 02806
(401) 246-1230 - 46.-82.Rank: #46-8210
Grades: 9-12P.O. Box 1910
Newport, RI 02840
(401) 842-6600 - 46.-82.Rank: #46-8210
Grades: 7-121101 Genesee Street
Delafield, WI 53018
(800) 752-2338 - 46.-82.Rank: #46-8210
Grades: 8-12, PGPO Box 158, 444 Water Lane
Tappahannock, VA 22560
(804) 443-3357 - 46.-82.Rank: #46-8210
Grades: 9-12, PG6832 Phillips Mill Road
New Hope, PA 18938
(215) 862-5261 - 46.-82.Rank: #46-8210
Grades: 7-12, PG574 Bernardston Road
Greenfield, MA 01301
(413) 774-2711 - 46.-82.Rank: #46-8210
Grades: 9-12, PG10 Long Walk
Saxtons River, VT 05154
(802) 869-6229 - 46.-82.Rank: #46-8210
Grades: 7-12 | 6-12 (day)319 Webb Road East
Bell Buckle, TN 37020
(931) 389-6003 - 46.-82.Rank: #46-8210
Grades: 9-12, PG371 West Farm Road
Bethlehem, NH 03574
(603) 444-2928 - 83.-105.Rank: #83-105 11
Grades: 9-12, PG80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200 - 83.-105.Rank: #83-10511
Grades: 9-12, PG205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780 - 83.-105.Rank: #83-10511
Grades: 8-12500 Christ School Road
Asheville, NC 28704
(828) 684-6232 - 83.-105.Rank: #83-10511
Grades: 9-121200 N. Quaker Lane
Alexandria, VA 22302
(877) 933-4347 - 83.-105.Rank: #83-10511
Grades: 9-12, PGPO Box 860
Bethel, ME 04217
(207) 824-7777 - 83.-105.Rank: #83-10511
Grades: 9-121 Elm Street
Byfield, MA 01922
(978) 499-3120 - 83.-105.Rank: #83-105Groton School (Episcopal)11
Grades: 8-12282 Farmers Row, Box 991
Groton, MA 01450
(978) 448-7510 - 83.-105.Rank: #83-10511
Grades: 9-12, PGPO Box 257, 1614 Main St., Rte. 17
Kents Hill, ME 04349
(207) 685-1606 - 83.-105.Rank: #83-10511
Grades: 9-12, PG64 Main Street
Meriden, NH 03770
(603) 469-2100 - 83.-105.Rank: #83-10511
Grades: 9-12, PG1888 Brett Lane
Saltsburg, PA 15681
(724) 639-8035 - 83.-105.Rank: #83-10511
Grades: 6-12, PG66 School Street
Granby, MA 01033
(413) 255-0000 - 83.-105.Rank: #83-10511
Grades: 7-12, PG320 Iwo Jima Blvd
Harlingen, TX 78550 - 83.-105.Rank: #83-10511
Grades: 9-12, PG100 Academy Drive
Mercersburg, PA 17236
(717) 328-6173 - 83.-105.Rank: #83-10511
Grades: 9-12, PG45 Waterloo Street South
Stratford, ON, Canada L0R1B
(519) 272-1900 - 83.-105.Rank: #83-10511
Grades: 9-12, PG70 Main Street
New Hampton, NH 03256
(603) 677-3401 - 83.-105.Rank: #83-10511
Grades: 6-12, PG200 Seminary Street
Pennsburg, PA 18073
(215) 679-9511 - 83.-105.Rank: #83-10511
Grades: 6-12, PG | K-12, PG (day)18 Goodfriend Drive
East Hampton, NY 11937
(631) 907-5400 - 83.-105.Rank: #83-10511
Grades: 8-1217641 College Road
Hagerstown, MD 21740
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