Smallest Average Class Size (2017-2018)

All Schools
All Schools 
400+ students
400+ students 
200-400 students
200-400 students 
< 200 students
< 200 students 
More
  • Among "All Schools", view the boarding schools with the smallest average class sizes.
  • 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

Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 1.
    4
    Grades: 3-12
    28 Patey Circle
    RindgeNH 03461
    603-899-3325
  • 2.-7.
    5
    Grades: 6-12, PG
    950 S. Brehm Lane
    CarbondaleIL 62901
    618-457-0371
  • 2.-7.
    5

    Grades: 6-12
    14 Greenwood Lane
    PutneyVT 05346
    802-387-4545
  • 2.-7.
    5

    Grades: 3-8 | 1-8 (day)
    128 Oakland Farm Way
    TroyVA 22974
    434-293-9059
  • 2.-7.
    5

    Grades: 6-12 | Pre-K-12 (day)
    PO Box 3050, 198 Main St.
    Chester/Lake AlmanorCA 96020
    530-596-3343
  • 2.-7.
    5

    Grades: 9-12
    1 West Campbell Avenue, B-20
    CampbellCA 95008
    408-866-9988
  • 2.-7.
    5

    Grades: 6-12, PG
    93 Camp School Road
    WolfeboroNH 03894
    603-569-3451
  • 8.-14.
    Academy of the Holy Family
    All-Girls  (Catholic)
    6
    Grades: 9-12
    54 W. Main Street Box 691
    BalticCT 06330
    860-822-6279
  • 8.-14.
    6

    Grades: 9-12, PG
    454 Academy Drive
    DurangoCO 81301
    970-247-5898
  • 8.-14.
    6

    Grades: 8-12
    P.O. Box 116 , 242 Old Petersham Road
    HardwickMA 01037
    413-477-6000
  • 8.-14.
    6

    Grades: 8-12, PG
    3042 College St.
    AustinburgOH 44010
    4402752811
  • 8.-14.
    6

    Grades: 7-12, PG
    333 Ocean Road
    NarragansettRI 02882
    401-788-0800
  • 8.-14.
    6

    Grades: 7-12, PG
    P.O. Box 4329
    West SedonaAZ 86340
    1-877-554-6277
  • 8.-14.
    6

    Grades: 6-12
    22000 Hwy 27
    Lake WalesFL 33859
    863-676-6091
  • 15.-21.
    7
    Grades: 8-12, PG
    200 N. Carlisle St.
    New BloomfieldPA 17068
    717-582-2121
  • 15.-21.
    7

    Grades: 11-12 | Pre-K-12 (day)
    518 S. San Juan Ave., Box 1243
    Buena VistaCO 81211
    719 395 6046
  • 15.-21.
    7

    Grades: 7-12, PG
    447 W. Meadow Circle
    RichfieldUT 84701
    4356335326
  • 15.-21.
    7

    Grades: K-12 | Pre-K-12 (day)
    3846 N. Hwy. 144
    GranburyTX 76048
    254.897.4822
  • 15.-21.
    Olney Friends School
    (Society of Friends)
    7

    Grades: 9-12
    61830 Sandy Ridge Road
    BarnesvilleOH 43713
    740-425-3655
  • 15.-21.
    7

    Grades: 6-12, PG
    583 Sugartown Road
    MalvernPA 19355
    610-644-1754
  • 15.-21.
    7

    Grades: 9-12, PG
    172 Ash Street
    WinchendonMA 01475
    978-297-4476
  • 22.-43.
    8
    Grades: 7-12
    PO Box 388
    BalsamNC 28707
    8284563435
  • 22.-43.
    8

    Grades: 6-12
    1701 Brandon Hall Drive
    AtlantaGA 30350
    770-394-8177
  • 22.-43.
    8

    Grades: 9-12
    Slovenska 477/5
    Karlovy VaryCzech Republic 36001
    00420353227387
  • 22.-43.
    Chatham Hall
    All-Girls  (Episcopal)
    8

    Grades: 9-12
    800 Chatham Hall Circle
    ChathamVA 24531
    434-432-5516
  • 22.-43.
    8

    Grades: 9-12, PG
    Dorfstrasse
    6085 Hasliberg GoldernSwitzerland 6085
    1-401-782-8682
  • 22.-43.
    8

    Grades: 9-12, PG
    12 Norfolk Road, P.O. Box 80
    LitchfieldCT 06759
    860-567-1802
  • 22.-43.
    8

    Grades: 7-12
    280 King Street East
    BrockvilleCanada K6V1E2
    16133419330
  • 22.-43.
    8

    Grades: 7-12
    5755 North State Road 9/P.O. Box 240
    HoweIN 46746
    888-462-4693
  • 22.-43.
    8

    Grades: 9-12, PG
    616 High Street
    BathME 04530
    207-443-7101
Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 31.-43.
    8
    Grades: 6-12, PG | 2-12, PG (day)
    425 Morse Hill Rd.
    AmeniaNY 12501
    845-373-2012
  • 31.-43.
    8

    Grades: 9-12 | 2-12 (day)
    P.O. Box 227
    Prides CrossingMA 01965
    978-236-3000
  • 31.-43.
    8

    Grades: 6-12, PG
    78 Academy Avenue
    Cornwall-on-HudsonNY 12520
    888-275-6962
  • 31.-43.
    8

    Grades: 4-9
    4382 Cascade Road
    Lake PlacidNY 12946
    518-523-9329
  • 31.-43.
    Oldfields School
    All-Girls 
    8

    Grades: 8-12, PG
    1500 Glencoe Road
    Sparks GlencoeMD 21152
    410-472-4800
  • 31.-43.
    8

    Grades: 8-12, PG
    1000 Orme School Road, H.C. 63, Box 3040
    MayerAZ 86333
    928-632-7601
  • 31.-43.
    Purnell School
    All-Girls 
    8

    Grades: 9-12, PG
    51 Pottersville Road, P.O. Box 500
    PottersvilleNJ 07979
    908-439-2154
  • 31.-43.
    8

    Grades: 9-12, PG
    1 Rock Point Road
    BurlingtonVT 05408
    8028631104
  • 31.-43.
    8

    Grades: 9-12, PG | 6-12, PG (day)
    63 Federal Road
    BarringtonRI 02806
    401-246-1230
  • 31.-43.
    8

    Grades: 9-12, PG
    1951 Delta Avenue
    West BranchIA 52358
    1-319-519-1856
  • 31.-43.
    8

    Grades: 7-12, PG | Pre-K-12, PG (day)
    1 Ames Hill Drive
    SpringfieldMA 01105
    4132858976
  • 31.-43.
    8

    Grades: 9-12, PG
    235 Squaw Valley Road | P.O. Box 2667
    Olympic ValleyCA 96146
    530-583-9393
  • 31.-43.
    8

    Grades: 9-12, PG
    42605 RCR 36
    Steamboat SpringsCO 80487
    970-879-1350
  • 44.-54.
    Blue Ridge School
    All-Boys  (Episcopal)
    9
    Grades: 9-12
    273 Mayo Drive
    St. GeorgeVA 22935
    434-985-2811
  • 44.-54.
    9

    Grades: 9-12
    291 South Street
    WilliamstownMA 01267
    413-458-3919
  • 44.-54.
    9

    Grades: 9-12, PG
    110 Darrow Road
    New LebanonNY 12125
    518-794-6006
  • 44.-54.
    Grier School
    All-Girls 
    9

    Grades: 7-12, PG
    P.O. Box 308
    TyronePA 16686
    814-684-3000
  • 44.-54.
    Hoosac School
    (Episcopal)
    9

    Grades: 8-12, PG
    PO Box 9
    HoosickNY 12089
    518-686-7331
  • 44.-54.
    9

    Grades: 8-12, PG
    1000 Samuel Miller Loop
    CharlottesvilleVA 22903
    434-823-4805
  • 44.-54.
    St. Timothy's School
    All-Girls  (Episcopal)
    9

    Grades: 9-12, PG
    8400 Greenspring Avenue
    StevensonMD 21153
    410-486-7401
  • 44.-54.
    South Kent School
    All-Boys  (Episcopal)
    9

    Grades: 9-12, PG
    40 Bulls Bridge Road
    South KentCT 06785
    860-927-3539
  • 44.-54.
    9

    Grades: 6-12, PG
    2800 Monterey Road
    San MarinoCA 91108
  • 44.-54.
    9

    Grades: 7-12, PG
    574 Bernardston Road
    GreenfieldMA 01301
    413-774-2711
  • 44.-54.
    9

    Grades: 8-12, PG
    120 South 100 West
    Mt. PleasantUT 84647
    435-462-1400
  • 55.-87.
    10
    Grades: 9-12, PG
    4334 Hobbs Road
    GreensboroNC 27410
    336-217-7070
  • 55.-87.
    10

    Grades: 9-12, PG
    8585 Ojai Santa Paula Road
    OjaiCA 93023
    805-646-4343
  • 55.-87.
    10

    Grades: 9-12
    1960 Cate Mesa Road, P.O. Box 5005
    CarpinteriaCA 93013
    8056844127
  • 55.-87.
    10

    Grades: 9-12, PG
    785 Beaver Street
    WalthamMA 02452
    781-314-0806
  • 55.-87.
    10

    Grades: 6-9
    271 Pine Nook Road, P.O. Box 7
    DeerfieldMA 01342
    413-774-9111
  • 55.-87.
    10

    Grades: 7-12
    225 S. Wayne Avenue
    WaynesboroVA 22980
    1-800-946-7773
  • 55.-87.
    10

    Grades: 10-12, PG
    118 Main Street East, Merrickville, Ontario
    MerrickvilleCanada K0G1N
    6132692064
  • 55.-87.
    10

    Grades: 9-12 | Pre-K-12 (day)
    222 Isaac Frye Highway
    WiltonNH 03086
    6036542391
  • 55.-87.
    10

    Grades: 6-9 | Pre-K-9 (day)
    211 Indian Mountain Road
    LakevilleCT 06039
    435-480-0871
  • 55.-87.
    10

    Grades: 9-12
    One Old Homestead Road
    Glen ArborMI 49636
    231-334-5800
  • 55.-87.
    Linden Hall School
    All-Girls 
    10

    Grades: 6-12, PG
    212 East Main Street
    LititzPA 17543
    717-626-8512
  • 55.-87.
    10

    Grades: 9-12
    294 Lustre Road
    LustreMT 59225
    406-392-5735
  • 55.-87.
    10

    Grades: 9-12, PG
    476 Skiff Mountain Road
    KentCT 06757
    860-927-0047
  • 55.-87.
    10

    Grades: 6-12, PG
    614 South Main Street
    WoodstockVA 22664
    877-466-6222
  • 55.-87.
    10

    Grades: 9-12
    PO Box 8
    Los OlivosCA 93441
    805-688-5114
  • 55.-87.
    Miss Hall's School
    All-Girls 
    10

    Grades: 9-12, PG
    492 Holmes Road, PO Box 1166
    PittsfieldMA 01201
    413-499-1300
  • 55.-87.
    10

    Grades: 9-12
    60 Main Street
    FarmingtonCT 06032
    8604093530
  • 55.-87.
    10

    Grades: 9-12
    1500 Port Arthur Road
    LadysmithWI 54848
    715-532-0201
  • 55.-87.
    10

    Grades: 9-12, PG
    92 Northwood Road
    Lake PlacidNY 12946
    518-523-3382
  • 55.-87.
    Oak Hill Academy
    (Baptist)
    10

    Grades: 8-12
    2635 Oak Hill Road
    Mouth of WilsonVA 24363
    276-579-2619
  • 55.-87.
    10

    Grades: 5-9 | Pre-K-9 (day)
    P.O. Box 68 528 Pomfret Street
    PomfretCT 06258
    860-928-1328
  • 55.-87.
    St. George's School
    (Episcopal)
    10

    Grades: 9-12
    PO Box 1910
    NewportRI 02840
    401-842-6600
  • 55.-87.
    St. Margaret's School
    All-Girls  (Episcopal)
    10

    Grades: 8-12
    444 Water Lane PO Box 158
    TappahannockVA 22560
    804-443-3357
  • 55.-87.
    St. Thomas More School
    All-Boys  (Catholic)
    10

    Grades: 8-12, PG
    45 Cottage Road
    OakdaleCT 06370
    860-823-3861
  • 55.-87.
    10

    Grades: 9-12 | 7-12 (day)
    6832 Phillips Mill Road
    New HopePA 18938
    215-862-5261
  • 55.-87.
    10

    Grades: 7-12 | 5-12 (day)
    505 Spring Street
    Friday HarborWA 98250
    360-378-6393
  • 55.-87.
    10

    Grades: 8-12, PG
    314 Mountain Road
    Cornwall on HudsonNY 12520
    845-458-7542
  • 55.-87.
    Stuart Hall School
    (Episcopal)
    10

    Grades: 8-12 | Pre-K-12 (day)
    235 West Frederick Street
    StauntonVA 24401
    540-213-3746
  • 55.-87.
    10

    Grades: 9-12, PG
    Suffield Academy
    SuffieldCT 06078
    860-386-4440
  • 55.-87.
    10

    Grades: 9-12, PG
    10 Long Walk
    Saxtons RiverVT 05154
    8028696229
  • 55.-87.
    10

    Grades: 7-12 | 6-12 (day)
    319 Webb Road East
    Bell BuckleTN 37020
    931-389-6003
  • 55.-87.
    10

    Grades: 9-12, PG
    371 West Farm Road
    BethlehemNH 03574
    6034442928
  • 55.-87.
    10

    Grades: 9-12
    241 Woodberry Station
    Woodberry ForestVA 22989
    888-798-9371
  • 88.-111.
    11
    Grades: 9-12, PG
    80 Academy Drive
    WolfeboroNH 03894
    603-569-7200
  • 88.-111.
    Buffalo Seminary
    All-Girls 
    11

    Grades: 9-12, PG
    205 Bidwell Parkway
    BuffaloNY 14222
    716-885-6780
  • 88.-111.
    Canterbury School
    (Catholic)
    11

    Grades: 9-12, PG
    101 Aspetuck Avenue
    New MilfordCT 06776
    (860)210-3832
  • 88.-111.
    11

    Grades: 9-12, PG
    10 Main Street
    CheshireCT 06410
    2034397250
  • 88.-111.
    Christ School
    All-Boys  (Episcopal)
    11

    Grades: 8-12
    500 Christ School Road
    AshevilleNC 28704
    8286846232
  • 88.-111.
    11

    Grades: 9-12
    1200 N. Quaker Lane
    AlexandriaVA 22302
    877-933-4347
  • 88.-111.
    11

    Grades: 9-12, PG
    975 West Main Street
    Dover FoxcroftME 04426
    207-564-8664
  • 88.-111.
    11

    Grades: 9-12, PG
    PO Box 860
    BethelME 04217
    207-824-7777
  • 88.-111.
    Hargrave Military Academy
    All-Boys  (Baptist)
    11

    Grades: 7-12, PG
    200 Military Drive
    ChathamVA 24531
    800-432-2480
  • 88.-111.
    11

    Grades: 9-12, PG
    PO Box 257, 1614 Main St., Rte. 17
    Kents HillME 04349
    207-685-1606
  • 88.-111.
    La Lumiere School
    (Catholic)
    11

    Grades: 9-12, PG
    6801 N. Wilhelm Road
    La PorteIN 46350
    2193267450
  • 88.-111.
    11

    Grades: 9-12, PG
    Office of Admission
    WindsorCT 06095
    860-687-6400
  • 88.-111.
    11

    Grades: 6-12, PG
    66 School Street
    GranbyMA 01033
    413-255-0000
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