Smallest Average Class Size

All Schools
All Schools 
400+ students
400+ students 
200-400 students
200-400 students 
< 200 students
< 200 students 
More
  • Among "Schools with 200-400 Students", view the boarding schools with the smallest average class sizes (2018-19).
  • 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 (2018-19)

Among Schools with 200-400 Students (out of 114 schools)

Sorted by range (alphabetically within range)
  • Boarding School # Students Grades Location
  • 1.
    6
    Grades: 8-12
    P.O. Box 116 , 242 Old Petersham Road
    HardwickMA 01037
    (413)477-6000
  • 2.
    7
    Grades: 9-12, PG
    172 Ash Street
    WinchendonMA 01475
    (978)297-4476
  • 3.
    8
    Grades: 9-12, PG | 6-12, PG (day)
    63 Federal Road
    BarringtonRI 02806
    (401)246-1230
  • 4.-8.
    9
    Grades: 9-12
    1 High Street
    ChestertonUnited Kingdom CB4 1NQ
    01223314431
  • 4.-8.
    9

    Grades: 9-12, PG
    12 Norfolk Road, P.O. Box 80
    LitchfieldCT 06759
    (860)567-1802
  • 4.-8.
    Grier School
    Grier School Photo
    All-Girls 
    9

    Grades: 7-12, PG
    2522 Grier School Road
    TyronePA 16686
    (814)684-3000
  • 4.-8.
    St. Timothy's School
    St. Timothy's School Photo - Dedicated in 2012, the Grass Family Turf Field is a FIFA II/quality synthetic field with 100% organic infill. It is the home field for St. Timothy's field hockey, lacrosse, and soccer teams.
    All-Girls  (Episcopal)
    9

    Grades: 9-12, PG
    8400 Greenspring Avenue
    StevensonMD 21153
    (410)486-7401
  • 4.-8.
    9

    Grades: 9-12
    241 Woodberry Station
    Woodberry ForestVA 22989
    (888)798-9371
  • 9.-22.
    10
    Grades: 9-12
    1960 Cate Mesa Road, P.O. Box 5005
    CarpinteriaCA 93013
    (805)684-4127
  • 9.-22.
    10

    Grades: 9-12, PG
    43-45 Bloomsbury Square
    LondonUnited Kingdom CB1 2JH
    2078411580
  • 9.-22.
    10

    Grades: 8-12 | 6-12 (day)
    P.O. Box 98, 2555 W. Highway 154
    Los OlivosCA 93441
    (800)287-9197
  • 9.-22.
    10

    Grades: 6-9
    271 Pine Nook Road, P.O. Box 7
    DeerfieldMA 01342
    (413)774-9111
  • 9.-22.
    Hargrave Military Academy
    Hargrave Military Academy Photo - Respect! Integrity! Success! Earn it at Hargrave!
    All-Boys  (Baptist)
    10

    Grades: 7-12, PG
    200 Military Drive
    ChathamVA 24531
    (800)432-2480
  • 9.-22.
    10

    Grades: 5-9 | Pre-K-9 (day)
    211 Indian Mountain Road
    LakevilleCT 06039
    (435)480-0871
  • 9.-22.
    Linden Hall School
    Linden Hall School Photo - More than 75% of Linden Hall students participate in the performing arts. Linden Hall's Music Department offers orchestral and vocal programs, and private lessons; there are two theatre productions each year; and dance classes are offered.
    All-Girls 
    10

    Grades: 6-12, PG
    212 East Main Street
    LititzPA 17543
    (717)626-8512
  • 9.-22.
    Miss Hall's School
    Miss Hall's School Photo - Horizons is where the Miss Hall's commitment to engagement, service and leadership comes to life. Through weekly on and off-campus internships, volunteer opportunities, and on-campus student-led projects, 100 percent of Miss Hall's students spend Thursdays developing leadership skills, exploring career interests, and making a difference in the communities around them.
    All-Girls 
    10

    Grades: 9-12, PG
    492 Holmes Road, PO Box 1166
    PittsfieldMA 01201
    (413)499-1300
  • 9.-22.
    10

    Grades: 9-12
    60 Main Street
    FarmingtonCT 06032
    (860)409-3530
  • 9.-22.
    10

    Grades: 5-9 | Pre-K-9 (day)
    P.O. Box 68 528 Pomfret Street
    PomfretCT 06258
    (860)928-1328
  • 9.-22.
    St. George's School
    St. George's School Photo - Our 125-acre campus is on a hilltop overlooking the ocean.
    (Episcopal)
    10

    Grades: 9-12
    P.O. Box 1910
    NewportRI 02840
    (401)842-6600
  • 9.-22.
    10

    Grades: 9-12, PG
    6832 Phillips Mill Road
    New HopePA 18938
    (215)862-5261
  • 9.-22.
    Stuart Hall School
    Stuart Hall School Photo - Our Math & Science Emphasis program allows students to engage with Math the Sciences on a deeper level through research, independent projects, and a schedule focused on Pre-Engineering, Pre-Med, or Mathematics.
    (Episcopal)
    10

    Grades: 8-12 | Pre-K-12 (day)
    235 West Frederick Street
    StauntonVA 24401
    (540)213-3746
  • 9.-22.
    10

    Grades: 7-12 | 6-12 (day)
    319 Webb Road East
    Bell BuckleTN 37020
    (931)389-6003
  • 23.-35.
    11
    Grades: 9-12, PG
    80 Academy Drive
    WolfeboroNH 03894
    (603)569-7200
  • 23.-35.
    Canterbury School
    Canterbury School Photo - Canterbury swimmers practice in the William W. Higgins ’53 Aquatic Center, an eight-lane, 25-yard competitive swim and dive pool. Dedicated in 2008, it is the finest swimming, diving, and water polo venue in New England.
    (Catholic)
    11

    Grades: 9-12, PG
    101 Aspetuck Avenue
    New MilfordCT 06776
    (860)210-3832
  • 23.-35.
    Christ School
    Christ School Photo
    All-Boys  (Episcopal)
    11

    Grades: 8-12
    500 Christ School Road
    AshevilleNC 28704
    (828)684-6232
  • 23.-35.
    11

    Grades: 9-12, PG
    PO Box 860
    BethelME 04217
    (207)824-7777
  • 23.-35.
    11

    Grades: 9-12, PG
    PO Box 257, 1614 Main St., Rte. 17
    Kents HillME 04349
    (207)685-1606
  • 23.-35.
    11

    Grades: 6-12
    66 School Street
    GranbyMA 01033
    (413)255-0000
  • 23.-35.
    11

    Grades: 7-12, PG
    320 Iwo Jima Blvd
    HarlingenTX 78550
  • 23.-35.
    11

    Grades: 9-12, PG
    70 Main Street
    New HamptonNH 03256
    (603)677-3401
  • 23.-35.
    11

    Grades: 6-12, PG
    200 Seminary Street
    PennsburgPA 18073
    (215)679-9511
  • 23.-35.
    Saint James School
    Saint James School Photo - Six times a week, we gather for seated meals, a tradition that has shaped the Saint James community since our founding in 1842.
    (Episcopal)
    11

    Grades: 8-12
    17641 College Road
    HagerstownMD 21740
    (301)733-9330
  • 23.-35.
    11

    Grades: 9-12
    5025 Thacher Road
    OjaiCA 93023
    (805)640-3210
  • 23.-35.
    11

    Grades: 9-12
    400 VES Road
    LynchburgVA 24503
    (434)385-3607
  • 23.-35.
    Westover School
    Westover School Photo - Life in the Dorms
    All-Girls 
    11

    Grades: 9-12
    1237 Whittemore Rd., P.O. Box 847
    MiddleburyCT 06762
    (203)577-4521
  • 36.-74.
    12
    Grades: 9-12
    827 N. Tacoma Avenue
    TacomaWA 98403
    (253)284-8600
  • 36.-74.
    12

    Grades: 3-9 | K-9 (day)
    94 Old Main Street, PO Box 8
    DeerfieldMA 01342
    (413)774-4209
  • 36.-74.
    Brooks School
    Brooks School Photo - Come visit our beautiful 251 acre campus located on the shores of Lake Cochichewick.
    (Episcopal)
    12

    Grades: 9-12
    1160 Great Pond Road
    North AndoverMA 01845
    (978)725-6272
  • 36.-74.
    12

    Grades: 7-12, PG
    520 Hwy. 1 North
    CamdenSC 29020
    (800)948-6291
  • 36.-74.
    12

    Grades: 6-9
    62 Alumni Drive
    CanaanNH 03741
    (603)523-3548
  • 36.-74.
    12

    Grades: 9-12
    2001 Washington Street
    BraintreeMA 02184
    (857)400-9700
  • 36.-74.
    12

    Grades: 9-12, PG
    10 Main Street
    CheshireCT 06410
    (203)439-7250
  • 36.-74.
    Christchurch School
    Christchurch School Photo - "Set your course at the river. " Established in the Episcopal tradition, Christchurch is inclusive, welcoming students and families of all faiths and backgrounds.
    (Episcopal)
    12

    Grades: 9-12
    49 Seahorse Lane
    ChristchurchVA 23031
    (804)758-2306
  • 36.-74.
    12

    Grades: 9-12
    166 Main Street
    ConcordMA 01742
    (978)402-2250
  • 36.-74.
    12

    Grades: 9-12, PG
    39 School Street, P.O. Box 8000
    AshburnhamMA 01430
    (978)827-7300
  • 36.-74.
    12

    Grades: 8-12 | Pre-K-12 (day)
    8150 Oliver Rd.
    EriePA 16510
    (814)866-6979
  • 36.-74.
    12

    Grades: 9-12, PG | 6-12, PG (day)
    230 Bushy Hill Road
    SimsburyCT 06070
    (860)408-4200
  • 36.-74.
    Fork Union Military Academy
    Fork Union Military Academy Photo - The cadets in parade formation. The first full dress parade of the year begins usually at the end of April and is on Sunday.
    All-Boys  (Baptist)
    12

    Grades: 7-12, PG
    P.O. 278, 4744 James Madison Hwy
    Fork UnionVA 23055
    (800)462-3862
  • 36.-74.
    12

    Grades: 9-12
    6155 Fountain Valley School Road
    Colorado SpringsCO 80911
    (719)391-5251
  • 36.-74.
    Groton School
    (Episcopal)
    12

    Grades: 8-12
    282 Farmers Row, Box 991
    GrotonMA 01450
    (978)448-7510
  • 36.-74.
    12

    Grades: 9-12, PG | 6-12, PG (day)
    P.O. Box 309
    HebronME 04238
    (207)966-5225
  • 36.-74.
    Holderness School
    Holderness School Photo - Athletics aren't just about wins and losses-they're about testing your limits. Our three-season sports philosophy is counter-cultural: instead of encouraging specialization, we honor participation and effort in everything we do. We cultivate grit and persistence. We find joy in the playing.
    (Episcopal)
    12

    Grades: 9-12, PG
    PO Box 1879
    PlymouthNH 03264
    (603)536-1747
  • 36.-74.
    12

    Grades: 9-12, PG
    7 Campus Center, PO Box 188
    MeridenNH 03770
    (603)469-2100
  • 36.-74.
    12

    Grades: 9-12
    44 Main Street, PO Box 992
    GrotonMA 01450
    (978)448-1530
  • 36.-74.
    12

    Grades: 7-12, PG
    Chemin de la Source
    LeysinSwitzerland 1854
    0041244934888
  • 36.-74.
    The Madeira School
    The Madeira School Photo - Get into character in one of our annual theater productions.
    All-Girls 
    12

    Grades: 9-12, PG
    8328 Georgetown Pike
    McLeanVA 22102-1200
    (703)556-8273
  • 36.-74.
    12

    Grades: 9-12, PG
    26 Chase Road
    ThompsonCT 06277
    (860)923-9245
  • 36.-74.
    12

    Grades: 9-12, PG
    131 Millbrook School Road
    MillbrookNY 12545
    (845)677-8261
  • 36.-74.
    12

    Grades: 3-12 | Pre-K-12 (day)
    723 El Paseo Road
    OjaiCA 93023
    (805)646-1423
  • 36.-74.
    12

    Grades: 9-12, PG
    PO Box 128, 398 Pomfret Street
    PomfretCT 06258
    (860)963-6120
  • 36.-74.
    12

    Grades: 9-12, PG
    204 Main Street - P.O. Box 500
    AndoverNH 03216
    (603)735-6652
  • 36.-74.
    12

    Grades: 9-12
    418 Houghton Brook Road
    PutneyVT 05346
    (802)387-6219
  • 36.-74.
    Randolph-Macon Academy
    Randolph-Macon Academy Photo - Randolph-Macon Academy's Flight Program includes a drone class called Unmanned Flight Operations. Students finish with the knowledge base for the FAA exam so they can obtain their commercial drone license if they so desire. This class is just one of the innovative offerings at R-MA.
    (United Methodist)
    12

    Grades: 9-12, PG
    200 Academy Drive
    Front RoyalVA 22630
    (540)636-5484
  • 36.-74.
    12

    Grades: 5-9 | K-9 (day)
    201 Romford Road
    Washington DepotCT 06794
    (860)868-0535
  • 36.-74.
    12

    Grades: 9-12
    350 Noxontown Road
    MiddletownDE 19709
    (302)285-4231
  • 36.-74.
    St. Mark's School
    St. Mark's School Photo - St. Mark's School
    (Episcopal)
    12

    Grades: 9-12
    25 Marlboro Road
    SouthboroughMA 01772
    (508)786-6118
  • 36.-74.
    Salisbury School
    Salisbury School Photo - Salisbury School Boathouse
    All-Boys 
    12

    Grades: 9-12, PG
    251 Canaan Road
    SalisburyCT 06068
    (860)435-5732
  • 36.-74.
    12

    Grades: 9-12, PG | Pre-K-12, PG (day)
    6279 Hobbs Road
    SalisburyMD 21804
    (410)742-4464
  • 36.-74.
    12

    Grades: 6-12 | K-12 (day)
    2801 Ranch Road 12
    San MarcosTX 78666
    (800)428-5120
  • 36.-74.
    Santa Catalina School
    Santa Catalina School Photo - Music Recital Hall
    All-Girls  (Catholic)
    12

    Grades: 9-12
    1500 Mark Thomas Drive
    MontereyCA 93940
    (831)655-9356
  • 36.-74.
    12

    Grades: 9-12, PG
    30 School Street
    TiltonNH 03276
    (603)286-1733
  • 36.-74.
    Trinity-Pawling School
    Trinity-Pawling School Photo - At Trinity-Pawling, innovation is a key component of our curriculum. Every day, faculty and students engage in hands-on learning, creating, designing, and prototyping-and our Innovation Sites (I-Sites) make it all possible! These 3 dedicated spaces on campus are a home base for collaboration, creativity, and exploration.
    All-Boys  (Episcopal)
    12

    Grades: 8-12, PG | 7-12, PG (day)
    700 Route 22
    PawlingNY 12564
    (845)855-4825
  • 36.-74.
    12

    Grades: 8-12, PG
    120 South 100 West
    Mt. PleasantUT 84647
    (435)462-1400
  • 36.-74.
    12

    Grades: 9-12, PG
    995 Hopmeadow Street
    SimsburyCT 06070
    (860)408-3060
  • 75.-85.
    13
    Grades: 9-12
    360 Asheville School Rd.
    AshevilleNC 28806
    (828)254-6345
  • 75.-85.
    13

    Grades: 9-12, PG
    45 Georgian Road
    WestonMA 02493
    (781)642-8650
  • 75.-85.
    13

    Grades: 9-12
    EF House, Castle Road
    TorquayUnited Kingdom 13
    9144956028
  • 75.-85.
    13

    Grades: 9-12, PG
    52500 Temecula Road
    IdyllwildCA 92549
    (951)468-7223
  • 75.-85.
    The Kiski School
    The Kiski School Photo - The Swank Student Center
    All-Boys 
    13

    Grades: 9-12, PG
    1888 Brett Lane
    SaltsburgPA 15681
    (724)639-8035
  • 75.-85.
    13

    Grades: 9-12
    285 Cory's Lane
    PortsmouthRI 02871
    (401)643-1248
  • 75.-85.
    Saint Mary's School
    Saint Mary's School Photo - Saint Mary's athletics program offers 11 sports - tennis, field hockey, volleyball, soccer, basketball, cross country, softball, lacrosse, golf, swimming, track and field.
    All-Girls  (Episcopal)
    13

    Grades: 9-12
    900 Hillsborough Street
    RaleighNC 27603
    (919)424-4100
  • 75.-85.
    13

    Grades: 9-12, PG
    Via Aventina 3
    RomeItaly 00153
    0039065750605
  • 75.-85.
    13

    Grades: 9-12 | Pre-K-12 (day)
    1 Community School Drive
    Sun ValleyID 83353
    (208)622-3955
  • 75.-85.
    13

    Grades: 9-12, PG
    PO Box 190, 66 Cutler Road
    East MachiasME 04630
    (207)255-8301
  • 75.-85.
    13

    Grades: 9-12 | 6-12 (day)
    302 Portola Road
    Portola ValleyCA 94028
    (650)851-8223
  • 86.-88.
    14
    Grades: 7-12, PG
    204 Grand Street
    MexicoMO 65265
    (573)581-1776
  • 86.-88.
    Mount Michael Benedictine School
    Mount Michael Benedictine School Photo - Mount Michael Benedictine School
    All-Boys  (Catholic)
    14

    Grades: 9-12
    22520 Mount Michael Road
    ElkhornNE 68022
    (402)238-1457
  • 86.-88.
    14

    Grades: 7-12
    1 Chapman Parkway
    Stony BrookNY 11790
    (631)751-1800
  • 89.-103.
    15
    Grades: 7-12
    2605 Carlsbad Blvd.
    CarlsbadCA 92008
    (888)762-2338
  • 89.-103.
    15

    Grades: 7-12
    80 chemin Moulton Hill
    Sherbrooke, QuebecCanada J1M 1Z8
    (819)566-0238
  • 89.-103.
    15

    Grades: 8-12 | Pre-K-12 (day)
    300 Garrison Forest Road
    Owings MillsMD 21117
    (410)559-3111
  • 89.-103.
    15

    Grades: 9-12, PG | K-12, PG (day)
    65-1692 Kohala Mountain Road
    KamuelaHI 96743
    (808)881-4321
  • 89.-103.
    15

    Grades: 9-12
    610 Hillcrest Dr.
    Fergus FallsMN 56537
    (218)739-3371
  • 89.-103.
    15

    Grades: 11-12, PG | Pre-K-12, PG (day)
    Mühlentalstrasse 280CH-8200 Schaffhausen
    SchaffhausenSwitzerland 8200
  • 89.-103.
    15

    Grades: 9-12
    4391 County Rd. 29
    LakefieldCanada K0L2H0
    (705)652-3324
  • 89.-103.
    15

    Grades: 8-12, PG | Pre-K-12, PG (day)
    4910 Honoapiilani Hwy
    LahainaHI 96761
    (808)665-9966
  • 89.-103.
    15

    Grades: 9-12
    1000 Green St.
    AtchisonKS 66002
    (913)367-5482
  • 89.-103.
    15

    Grades: 8-12 | 6-12 (day)
    290 Quintard Rd.
    SewaneeTN 37375
    (931)598-5651
  • 89.-103.
    15

    Grades: 7-12
    1600 St. Bernard Drive, S.E.
    CullmanAL 35055
    (256)255-5890
  • 89.-103.
    15

    Grades: 7-12
    1101 Genesee Street
    DelafieldWI 53018
  • Loading...

Top School Listings by Category (2018-19)

Compare among: 

Recent Articles
What Alums Have To Say About Their Schools
Learning about a school from its website and social media pages is useful as you decide which school to choose. So is hearing what the school's alumni say about their alma mater.
Summer Explorations 2019
The typical three-month-long summer break gives juniors and seniors a great opportunity to explore a variety of situations and options.
Alumni Relations Apps
Your graduates can do everything on their smartphones with one click. An alumni relations app will allow them to click a gift to their alma mater. More here.
Featured Schools
Featured Schools