Top National Association of Independent Schools (NAIS) Private High Schools in Connecticut

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Preschools
(34)
Preschools
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For the 2021 school year, there are 55 top private schools in Connecticut belonging to the National Association of Independent Schools (NAIS), serving 22,299 students.
The National Association of Independent Schools, governed by a board of trustees and staffed by approximately 40 individuals, is a membership organization and the national voice of independent education. NAIS represents approximately 1,400 independent schools and associations in the United States, and affiliates with independent schools abroad as well. We offer a broad variety of services and products. The NAIS Principles of Good Practice for member schools define high standards and ethical behavior in key areas of independent school operations.You can also find more schools membership associations in Connecticut.

Top National Association of Independent Schools (NAIS) Private High Schools (2021)

  • School Location Grades Students
  • Immaculate High School
    Immaculate High School Photo
    (Roman Catholic)
    73 Southern Blvd
    Danbury, CT 06810
    (203) 744-1510

    Grades: 9-12 | 405 students
  • 1450 Newfield Ave
    Stamford, CT 06905
    (203) 322-3496

    Grades: PK-12 | 695 students
  • 170 Kingswood Road
    West Hartford, CT 06119
    (860) 727-5000

    Grades: 6-12 | 518 students
  • 635 Frogtown Road
    New Canaan, CT 06840
    (203) 972-0771

    Grades: NS-9 | 600 students
  • Rectory School
    Rectory School Photo - Rectory's High Value Learning makes the classroom experience more compelling, and even takes the learning outside of the classroom. Our program allows students to thrive in a compelling hands-on environment where teamwork and creative problem solving are emphasized.
    (Episcopal)
    528 Pomfret Street
    Pomfret, CT 06258
    (860) 928-1328

    Grades: K-9 | 256 students
  • 377 North Wilton Road
    New Canaan, CT 06840
    (203) 801-4833

    Grades: 5-12 | 581 students
  • South Kent School
    South Kent School Photo - Computer Aided Design classroom.
    All-boys (Episcopal)
    40 Bulls Bridge Road
    South Kent, CT 06785
    (860) 927-3539

    Grades: 9-12 | 161 students
  • Westover School
    Westover School Photo
    All-girls
    1237 Whittemore Road
    Middlebury, CT 06762
    (203) 577-4521

    Grades: 9-12 | 169 students
  • 182 Mohegan Avenue
    New London, CT 06320
    (860) 443-5333

    Grades: 6-12 | 235 students
  • The Arch Bridge School
    Special Education School
    21 Arch Bridge Rd
    Bethlehem, CT 06751
    (203) 266-8031

    Grades: 3-12 | 57 students
  • 500 Old Farms Rd
    Avon, CT 06001
    (860) 404-4100

    Grades: 9-12 | 415 students
  • 2186 High Ridge Rd
    Stamford, CT 06903
    (203) 329-2186

    Grades: PK-12 | 335 students
  • Canterbury School
    Canterbury School Photo - At Canterbury, you will develop the skills most essential to meeting future challenges and succeeding in college. These start with critical thinking, excellence in writing, and a solid foundation in digital literacy.
    (Roman Catholic)
    101 Aspetuck
    New Milford, CT 06776
    (860) 210-3800

    Grades: 9-12 | 328 students
  • 565 Chase Parkway
    Waterbury, CT 06708
    (203) 236-9560

    Grades: PK-12 | 185 students
  • 10 Main St
    Cheshire, CT 06410
    (203) 439-7250

    Grades: 9-12 | 344 students
  • 333 Christian Street
    Wallingford, CT 06492
    (203) 697-2338

    Grades: 9-12 | 850 students
  • Eagle Hill School
    Eagle Hill School Photo - Eagle Hill School's Campus
    Special Education School
    45 Glenville Road
    Greenwich, CT 06831
    (203) 622-9240

    Grades: K-9 | 265 students
  • Fairfield College Preparatory
    All-boys (Roman Catholic)
    1073 N Benson Rd
    Fairfield, CT 06824
    (203) 254-4200

    Grades: 9-12 | 826 students
  • 2970 Bronson Road
    Fairfield, CT 06824
    (203) 259-2723

    Grades: PK-9 | 252 students
  • FlexSchool
    FlexSchool Photo
    Alternative School
    97 Whitney Ave.
    New Haven, CT 06510
    (203) 628-4018

    Grades: 5-12 | 12 students
  • 50 Loomis Place
    New Haven, CT 06511
    (203) 777-3464

    Grades: K-9 | 484 students
  • 99 Green Hill Rd
    Washington, CT 06793
    (860) 868-7334

    Grades: 9-12 | 320 students
  • The Glenholme School
    Special Education School
    81 Sabbaday Lane
    Washington, CT 06793
    (860) 868-7377

    Grades: 5-12 | 80 students
  • 35 Beachside Avenue
    Greens Farms, CT 06838
    (203) 256-7501

    Grades: PK-12 | 713 students
  • 200 N Maple Ave
    Greenwich, CT 06830
    (203) 625-8915

    Grades: PK-12 | 811 students
  • 401 Old Church Rd
    Greenwich, CT 06830
    (203) 863-5600

    Grades: NS-12 | 1,251 students
  • 1108 Whitney Ave
    Hamden, CT 06517
    (203) 752-2610

    Grades: NS-12 | 597 students
  • Holy Cross High School
    Holy Cross High School Photo - Be A Scholar, Be A Leader, Be Holy Cross
    (Roman Catholic)
    587 Oronoke Rd
    Waterbury, CT 06708
    (203) 757-9248

    Grades: 9-12 | 460 students
  • 986 Forest Road
    New Haven, CT 06515
    (203) 397-1001

    Grades: 7-12 | 714 students
  • 220 Nettleton Hollow Rd
    Washington, CT 06793
    (860) 868-2230

    Grades: 2-12 | 1,330 students
  • 11 Interlaken Road
    Lakeville, CT 06039
    (860) 435-3102

    Grades: 9-12 | 612 students
  • 211 Indian Mountain Road
    Lakeville, CT 06039
    (860) 435-0871

    Grades: PK-9 | 300 students
  • Kent School
    Kent School Photo
    (Episcopal)
    1 Macedonia Road
    Kent, CT 06757
    (860) 927-6111

    Grades: 9-12 | 572 students
  • Lauralton Hall
    Lauralton Hall Photo
    All-girls (Roman Catholic)
    200 High St
    Milford, CT 06460
    (203) 877-2786

    Grades: 9-12 | 469 students
  • 4 Batchelder Road
    Windsor, CT 06095
    (860) 687-6400

    Grades: 9-12 | 650 students
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