Smallest Average Class Size
Among "Schools with 400+ Students", 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)
Among Schools with 400+ Students (out of 99 schools)
Sorted by range (alphabetically within range)
- Boarding School # Students Grades Location
- 1.Rank: #1 6
Grades: 9-12 | 2-12 (day)P.O. Box 227
Prides Crossing, MA 01965
(978) 236-3000 - 2.-3.Rank: #2-3 9
Grades: 9-12, PGSuffield Academy
Suffield, CT 06078
(860) 386-4440 - 2.-3.Rank: #2-39
Grades: 9-12241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371 - 4.-7.Rank: #4-7 11
Grades: 9-121200 N. Quaker Lane
Alexandria, VA 22302
(877) 933-4347 - 4.-7.Rank: #4-711
Grades: 9-121 Elm Street
Byfield, MA 01922
(978) 499-3120 - 4.-7.Rank: #4-711
Grades: 9-12, PG100 Academy Drive
Mercersburg, PA 17236
(717) 328-6173 - 4.-7.Rank: #4-711
Grades: 9-12, PG110 Woodbury Road
Watertown, CT 06795
(860) 945-7700 - 8.-31.Rank: #8-31 12
Grades: 9-12, PG500 Old Farms Road
Avon, CT 06001
(800) 464-2866 - 8.-31.Rank: #8-3112
Grades: 9-12, PG245 North Undermountain Road
Sheffield, MA 01257
(413) 229-1003 - 8.-31.Rank: #8-3112
Grades: 9-12, PGPO Box 600
Blairstown, NJ 07825
(800) 462-5247 - 8.-31.Rank: #8-3112
Grades: 8-12955 Harbourside Drive
North Vancouver, BC, Canada V7P 3S4
(604) 998-1000 - 8.-31.Rank: #8-3112
Grades: 9-12, PG333 Christian Street
Wallingford, CT 06492
(203) 697-2239 - 8.-31.Rank: #8-3112
Grades: 9-12 | 5-12 (day)45 Dana Road
Wellesley, MA 02482
(781) 489-1331 - 8.-31.Rank: #8-3112
Grades: 9-12, PG7 Boyden Lane
Deerfield, MA 01342
(413) 774-1400 - 8.-31.Rank: #8-3112
Grades: 9-12, PG975 West Main Street
Dover Foxcroft, ME 04426
(207) 564-8664 - 8.-31.Rank: #8-3112
Grades: 9-12, PG860 Beech Street
Pottstown, PA 19464
(610) 326-1000 - 8.-31.Rank: #8-3112
Grades: 9-12, PGPO Box 2006
Kent, CT 06757
(860) 927-6111 - 8.-31.Rank: #8-3112
Grades: 9-12, PG1500 West Kennedy Road
Lake Forest, IL 60045
(847) 615-3267 - 8.-31.Rank: #8-3112
Grades: 9-12, PG2500 Main Street, PO Box 6008
Lawrenceville, NJ 08648
(609) 895-2030 - 8.-31.Rank: #8-3112
Grades: 9-12, PGOffice of Admission
Windsor, CT 06095
(860) 687-6400 - 8.-31.Rank: #8-3112
Grades: 9-12PO Box 127, 168 Institute Circle
Lyndon Center, VT 05850
(802) 535-3700 - 8.-31.Rank: #8-3112
Grades: 9-121400 Lowell Road
Concord, MA 01742
(978) 371-6524 - 8.-31.Rank: #8-3112
Grades: 8-12 | Pre-K-12 (day) 4254 Colonial Avenue
Roanoke, VA 24018
(540) 989-6641 - 8.-31.Rank: #8-3112
Grades: 9-12, PGOne Lamplighter Way
Mount Hermon, MA 01354
(413) 498-3227 - 8.-31.Rank: #8-3112
Grades: 9-12, PG201 South Main Street
Hightstown, NJ 08520
(609) 944-7501 - 8.-31.Rank: #8-3112
Grades: 9-12, PG20 Main Street
Exeter, NH 03833
(603) 777-3437 - 8.-31.Rank: #8-3112
Grades: 9-12, PG1000 Main Street, PO Box 906
St. Johnsbury, VT 05819
(802) 751-2130 - 8.-31.Rank: #8-3112
Grades: 9-12325 Pleasant Street
Concord, NH 03301
(603) 229-4700 - 8.-31.Rank: #8-31Shattuck-St. Mary's School (Episcopal)12
Grades: 6-12, PG1000 Shumway Avenue
Faribault, MN 55021
(507) 333-1618 - 8.-31.Rank: #8-3112
Grades: 9-12 | Pre-K-12 (day)3152 Forest Lake Road
Pebble Beach, CA 93953
(831) 625-8300 - 8.-31.Rank: #8-3112
Grades: 7-12 | 5-12 (day)201 Campus Drive, PO Box 10
Tallulah Falls, GA 30573
(706) 754-0400 - 32.-41.Rank: #32-41 13
Grades: 9-12582 Columbus Avenue
Thornwood, NY 10594
(914) 495-6028 - 32.-41.Rank: #32-4113
Grades: 9-12, PG | 6-12, PG (day)176 Edgerstoune Road
Princeton, NJ 08540
(609) 921-7600 - 32.-41.Rank: #32-4113
Grades: 9-1244 Main Street, PO Box 992
Groton, MA 01450
(978) 448-1530 - 32.-41.Rank: #32-4113
Grades: 7-12 | 5-12 (day)60 Knox Lane
Wheeling, WV 26003
(304) 233-1436 - 32.-41.Rank: #32-4113
Grades: 9-12, PG | 6-12, PG (day)500 Dodds Avenue
Chattanooga, TN 37404
(800) 234-2163 - 32.-41.Rank: #32-41The Pennington School (United Methodist)13
Grades: 8-12 | 6-12 (day)112 West Delaware Avenue
Pennington, NJ 08534
(609) 737-6128 - 32.-41.Rank: #32-4113
Grades: 9-12, PG180 Main Street
Andover, MA 01810
(978) 749-4050 - 32.-41.Rank: #32-4113
Grades: 7-12 | Pre-K-12 (day)339 Nacoochee Drive
Rabun Gap, GA 30568
(706) 746-7720 - 32.-41.Rank: #32-4113
Grades: 6-12, PG | Pre-K-12, PG (day)Via Collina d'Oro
Montagnola, Switzerland 6926
+41 91 960 51 51 - 32.-41.Rank: #32-4113
Grades: 9-12, PG | 6-12, PG (day)81 Providence Street
Worcester, MA 01604
(508) 459-5481 - 42.-53.Rank: #42-53 14
Grades: 9-12 | 6-12 (day)171 Baylor School Road
Chattanooga, TN 37405
(423) 267-5902 - 42.-53.Rank: #42-5314
Grades: 8-12 | Pre-K-12 (day)1051 N Houston
Bullard, TX 75757
(903) 894-5000 - 42.-53.Rank: #42-5314
Grades: 9-12 | Pre-K-12 (day)PO Box 801 39221 Woodward Ave.
Bloomfield Hills, MI 48303
(248) 645-3610 - 42.-53.Rank: #42-5314
Grades: 9-121300 Academy Road
Culver, IN 46511
(574) 842-7100 - 42.-53.Rank: #42-5314
Grades: 7-9 | K-9 (day)48 Main Street
Southborough, MA 01772
(508) 490-8201 - 42.-53.Rank: #42-5314
Grades: 9-121690 Newtown Langhorne Road
Newtown, PA 18940
(215) 579-6547 - 42.-53.Rank: #42-5314
Grades: 9-12 | 5-12 (day)49 Clinton Avenue
Dobbs Ferry, NY 10522
(914) 479-6420 - 42.-53.Rank: #42-5314
Grades: 9-12 | K-12 (day)170 Centre Street
Milton, MA 02186
(617) 898-2227 - 42.-53.Rank: #42-5314
Grades: 9-12, PG | Pre-K-12, PG (day)6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115 - 42.-53.Rank: #42-5314
Grades: 9-12 | Pre-K-12 (day)2132 Ivy Road
Charlottesville, VA 22903
(434) 296-5106 - 42.-53.Rank: #42-5314
Grades: 7-12 | Pre-K-12 (day)6189 Winter Garden-Vineland Rd
Windermere, FL 34786
(407) 905-7737 - 42.-53.Rank: #42-5314
Grades: 9-12, PG201 North Sprague Ave.
Kingston, PA 18704
(570) 270-2160 - 54.-70.Rank: #54-70 15
Grades: 9-12 | 6-12 (day)2100 Mt. Diablo Scenic Blvd.
Danville, CA 94506
(925) 362-7223 - 54.-70.Rank: #54-7015
Grades: 9-12, PG | Pre-K-12, PG (day)7400 San Jose Blvd.
Jacksonville, FL 32217
(904) 256-5030 - 54.-70.Rank: #54-7015
Grades: 9-12, PG | Pre-K-12, PG (day)1014 Cave Spring Road, SW
Rome, GA 30161
(706) 235-6051 - 54.-70.Rank: #54-7015
Grades: 9-12, PG745 Main Street
Fryeburg, ME 04037
(207) 935-2013 - 54.-70.Rank: #54-7015
Grades: 8-12 | Pre-K-12 (day)300 Garrison Forest Road
Owings Mills, MD 21117
(410) 559-3111 - 54.-70.Rank: #54-7015
Grades: 8-12 | Pre-K-12 (day)via Olivetti 1 31056 Roncade (TV) Italy
Treviso, Italy 31056
00390422789503 - 54.-70.Rank: #54-7015
Grades: 8-12 | Pre-K-12 (day)11600 Welch Road
Dallas, TX 75229
(214) 360-6526 - 54.-70.Rank: #54-7015
Grades: 6-12, PG5650 Bollettieri Blvd
Bradenton, FL 34210
(800) 872-6425 - 54.-70.Rank: #54-7015
Grades: 9-12, PG101 West College Blvd
Roswell, NM 88201
(800) 421-5376 - 54.-70.Rank: #54-7015
Grades: 6-12 | Pre-K-12 (day)7600 Lyons Road
Coconut Creek, FL 33073
(954) 305-6937 - 54.-70.Rank: #54-7015
Grades: 9-123900 Jog Road
Boca Raton, FL 33434
(561) 210-2020 - 54.-70.Rank: #54-7015
Grades: 9-12 | K-12 (day)1500 Butterfield Road
San Anselmo, CA 94960
(415) 258-1905 - 54.-70.Rank: #54-7015
Grades: 9-12 | Pre-K-12 (day)16923 Norwood Road
Sandy Spring, MD 20860
(301) 774-7455 - 54.-70.Rank: #54-7015
Grades: 9-12423 Fox Chapel Road
Pittsburgh, PA 15238
(412) 968-3180 - 54.-70.Rank: #54-7015
Grades: 9-12 | Pre-K-12 (day)1 Community School Drive
Sun Valley, ID 83353
(208) 622-3955 - 54.-70.Rank: #54-7015
Grades: 9-12 | 5-12 (day)55 Deblaquire St N.
Port Hope, Canada L1A4K7
(905) 885-3209 - 54.-70.Rank: #54-7015
Grades: 8-12, PG | 6-12, PG (day)423 Main Street
Wilbraham, MA 01095
(413) 596-9107 - 71.-99.Rank: #71-99 >15
Grades: 9-12 | K-12 (day)563 Kamoku Street
Honolulu, HI 96826
(808) 943-2279 - 71.-99.Rank: #71-99>15
Grades: 6-12 | Pre-K-12 (day)234 Global edu-ro, Daejeong-eup, Seogwipo-si
Jeju-do, South Korea 63644
82649025000 - 71.-99.Rank: #71-99>15
Grades: 9-12, PG2735 Mt. Baker Road
Mill Bay, BC V0R 2P1, Canada 1
(250) 743-5521 - 71.-99.Rank: #71-99>15
Grades: 9-1210900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215 - 71.-99.Rank: #71-99>15
Grades: 9-12 | 6-12 (day)1415 Summit Avenue
Seattle, WA 98122
(206) 682-7309 - 71.-99.Rank: #71-99>15
Grades: 9-123535 Commerce Rd.
Orchard Lake, MI 48324
(248) 683-0517 - 71.-99.Rank: #71-99>15
Grades: 5-12, PG | Pre-K-12, PG (day)2 Ridley Road
St Catharines, Canada l2r 7c3
(905) 684-1889 - 71.-99.Rank: #71-99>15
Grades: 8-121975 Renfrew Road
Shawnigan Lake, BC, Canada V0R2W1
(250) 743-6207 - 71.-99.Rank: #71-99>15
Grades: 9-121175 West Baseline Road
Claremont, CA 91711
(909) 482-5214 - 71.-99.Rank: #71-99>15
Grades: 9-12 | 4-12 (day)362 Mariposa Avenue
Ottawa, Canada K1M 0T3
(613) 749-9630 - 71.-99.Rank: #71-99>15
Grades: 6-12425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6640 - 71.-99.Rank: #71-99>15
Grades: 8-12 | Pre-K-12 (day)8401 Belvedere Rd
West Palm Beach, FL 33411
(561) 657-3470 - 71.-99.Rank: #71-99>15
Grades: 8-12 | K-12 (day)3400 Richmond Road
Victoria, Canada V8P 4P5
(250) 370-6170 - 71.-99.Rank: #71-99>15
Grades: 8-12 | 6-12 (day)6500 St. Stephen's Drive
Austin, TX 78746
(512) 327-1213 - 71.-99.Rank: #71-99>15
Grades: 7-12 | Pre-K-12 (day)10 Elm Avenue
Toronto, Canada m4w 1n4
(416) 920-9741 - 71.-99.Rank: #71-99>15
Grades: 6-12438 Main Street
Saco, ME 04072
(207) 282-5383 - 71.-99.Rank: #71-99>15
Grades: 7-12 | Pre-K-12 (day)13051 Whittington Dr.
Houston, TX 77077
(281) 496-7900 - 71.-99.Rank: #71-99>15
Grades: 9-12811 W. Donovan Street
Houston, TX 77091
(312) 416-1955 - 71.-99.Rank: #71-99>15
Grades: 9-12, PG330 N. Glenview Avenue
Milwaukee , WI 53213
(414) 453-4567 - 71.-99.Rank: #71-99>15
Grades: 9-124026 Maher St.
Napa, CA 94558
(312) 416-1955 - 71.-99.Rank: #71-99>15
Grades: 7-12, PG | Pre-K-12, PG (day)17235 Seventh Street
Montverde, FL 34756
(407) 469-2561 - 71.-99.Rank: #71-99>15
Grades: 6-121200 Oakdale Ave.
St. Paul, MN 55118
(651) 455-1521 - 71.-99.Rank: #71-99>15
Grades: 8-12 | 1-12 (day)4175 West 29th Avenue
Vancouver, BC, Canada V6S1V1
(604) 221-3890 - 71.-99.Rank: #71-99>15
Grades: 9-12550 S. Albert St.
Saint Paul, MN 55116
(312) 416-1955 - 71.-99.Rank: #71-99>15
Grades: 9-12112 Broad Street
Red Bank, NJ 07701
(312) 416-1955 - 71.-99.Rank: #71-99>15
Grades: 8-12 | K-12 (day)400 South Drive
Winnipeg, Canada 00000
(204) 477-2400 - 71.-99.Rank: #71-99>15
Grades: 9-121350 Gardena Avenue NE
Minneapolis, MN 55432
(763) 586-6318 - 71.-99.Rank: #71-99>15
Grades: 9-121 Carmel Parkway
Mundelein, IL 60060
(312) 416-1955 - 71.-99.Rank: #71-99>15
Grades: 9-121615 Mater Dei Drive
Chula Vista, CA 91913
(312) 416-1955
Top School Listings by Category (2021)
Recent Articles
Here are some considerations to ponder whilst choosing schools and when your child is actually away at school.
Do you like large schools or small schools? Are you most comfortable in a city, small town or countryside? Are you interested in attending a school that has a religious or military orientation? Would you like to attend a school that is only for boys or girls? These are some questions you must ask yourself before you begin your search for the right U.S. boarding school for you.
Here then are a dozen boarding schools which charge approximately $20,000 per year or less for tuition, room and board.
Featured Schools