For the 2025 school year, there are 79 private schools belonging to National Association of Independent Schools (NAIS) serving 26,111 students in Connecticut. You can also find more schools membership associations in Connecticut.
The top ranked private schools belonging to National Association of Independent Schools (NAIS) in Connecticut include Choate Rosemary Hall, Hopkins School, and St. Luke's School.
The average tuition cost is $50,159, which is higher than the Connecticut private school average tuition cost of $28,143.
Top Ranked Private Schools Belonging to National Association of Independent Schools (NAIS) in Connecticut (2025)
School
Location
Quick Facts
1108 Whitney Ave
Hamden, CT 06517
(203) 752-2610
Hamden, CT 06517
(203) 752-2610
Gr: NS-12 | 650 students Avg. class size: 12 students Sports: 21 | Extracurrculars: 45 Tuition listed
986 Forest Road
New Haven, CT 06515
(203) 397-1001
New Haven, CT 06515
(203) 397-1001
Gr: 7-12 | 715 students Avg. class size: 12 students Sports: 21 | Extracurrculars: 23 Tuition & acceptance rate listed
73 Southern Blvd
Danbury, CT 06810
(203) 744-1510
Danbury, CT 06810
(203) 744-1510
Gr: 9-12 | 384 students Avg. class size: 15 students Sports: 17 | Extracurrculars: 25 Tuition & acceptance rate listed
1450 Newfield Ave
Stamford, CT 06905
(203) 322-3496
Stamford, CT 06905
(203) 322-3496
Gr: PK-12 | 718 students Avg. class size: 12 students Sports: 19 | Extracurrculars: 42 Tuition listed
170 Kingswood Road
West Hartford, CT 06119
(860) 727-5000
West Hartford, CT 06119
(860) 727-5000
Gr: 6-12 | 507 students Avg. class size: 13 students Sports: 17 | Extracurrculars: 30 Tuition & acceptance rate listed
635 Frogtown Road
New Canaan, CT 06840
(203) 972-0771
New Canaan, CT 06840
(203) 972-0771
Gr: NS-9 | 555 students Avg. class size: 16 students Sports: 13 | Extracurrculars: 16 Tuition & acceptance rate listed
528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
Pomfret, CT 06258
(860) 928-1328
Gr: K-9 Avg. class size: 10 students Sports: 23 | Extracurrculars: 27 Tuition listed
2865 Albany Avenue
West Hartford, CT 06117
(860) 236-1661
West Hartford, CT 06117
(860) 236-1661
Gr: NS-8 | 373 students Avg. class size: 14 students Sports: 12 | Extracurrculars: 2 Tuition & acceptance rate listed
223 West Mountain Rd
Ridgefield, CT 06877
(203) 894-1800
Ridgefield, CT 06877
(203) 894-1800
Gr: NS-8 | 535 students Avg. class size: 10 students Sports: 12 | Extracurrculars: 11 Tuition & acceptance rate listed
2320 Huntington Tpke
Trumbull, CT 06611
(203) 378-9378
Trumbull, CT 06611
(203) 378-9378
Gr: 9-12 | 678 students Avg. class size: 15 students Sports: 21 | Extracurrculars: 35 Tuition listed
377 North Wilton Road
New Canaan, CT 06840
(203) 801-4833
New Canaan, CT 06840
(203) 801-4833
Gr: 5-12 | 587 students Avg. class size: 13 students Sports: 14 | Extracurrculars: 10 Tuition & acceptance rate listed
180 Bloomfield Avenue
Hartford, CT 06105
(860) 236-5618
Hartford, CT 06105
(860) 236-5618
Gr: 6-12 | 240 students Avg. class size: 13 students Sports: 9 | Extracurrculars: 14 Tuition & acceptance rate listed
1237 Whittemore Road
Middlebury, CT 06762
(203) 577-4521
Middlebury, CT 06762
(203) 577-4521
Gr: 9-12 | 192 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 26 Tuition & acceptance rate listed
182 Mohegan Avenue
New London, CT 06320
(860) 443-5333
New London, CT 06320
(860) 443-5333
Gr: 6-12 | 191 students Avg. class size: 11 students Sports: 7 | Extracurrculars: 11 Tuition & acceptance rate listed
478 Erskine Road
Stamford, CT 06903
(203) 322-7693
Stamford, CT 06903
(203) 322-7693
Gr: NS-5 | 94 students Avg. class size: 14 students Extracurrculars: 8 Tuition listed
45 Cottage Road
Oakdale, CT 06370
(860) 823-3861
Oakdale, CT 06370
(860) 823-3861
Gr: 8-12 | 162 students Avg. class size: 9 students Sports: 9 | Extracurrculars: 13 Tuition & acceptance rate listed
830 Whitney Avenue
New Haven, CT 06511
(203) 776-2123
New Haven, CT 06511
(203) 776-2123
Gr: K-6 | 126 students Avg. class size: 20 students Sports: 3 | Extracurrculars: 3 Tuition listed
40 Bulls Bridge Road
South Kent, CT 06785
(860) 927-3539
South Kent, CT 06785
(860) 927-3539
Gr: 9-12 | 170 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 9 Tuition listed
All Saints Catholic School
(Catholic)
139 W Rocks Rd
Norwalk, CT 06851
(203) 847-3881
Norwalk, CT 06851
(203) 847-3881
Gr: PK-8 | 560 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 1 Tuition & acceptance rate listed
Avon Old Farms School![Avon Old Farms School Photo - Avon Old Farms School is expert in educating boys. Since we are a single sex school, we use specialized learning methodologies focused on the areas of development that are critical to a young male in their adolescent years. This helps achieve greater success not only in the following four years of college, but the next forty years of their lives. Avon Old Farms School Photo - Avon Old Farms School is expert in educating boys. Since we are a single sex school, we use specialized learning methodologies focused on the areas of development that are critical to a young male in their adolescent years. This helps achieve greater success not only in the following four years of college, but the next forty years of their lives.]()

All-boys
500 Old Farms Rd
Avon, CT 06001
(860) 404-4100
Avon, CT 06001
(860) 404-4100
Gr: 9-12 | 415 students Avg. class size: 12 students Sports: 15 Tuition listed
2186 High Ridge Rd
Stamford, CT 06903
(203) 329-2186
Stamford, CT 06903
(203) 329-2186
Gr: PK-12 | 327 students Sports: 3 Tuition & acceptance rate listed
Brunswick School![Brunswick School Photo - Middle School Campus on King Street Brunswick School Photo - Middle School Campus on King Street]()

All-boys
100 Maher Avenue
Greenwich, CT 06830
(203) 625-5800
Greenwich, CT 06830
(203) 625-5800
Gr: PK-12 | 1,046 student Avg. class size: 11 students Sports: 20 | Extracurrculars: 14 Tuition & acceptance rate listed
Canterbury School![Canterbury School Photo - At Canterbury School, a balanced educational experience integrates academic achievement, personal growth, and community engagement. As a welcoming interfaith community, Canterbury fosters a sense of belonging, providing passionate educators and transformative opportunities that guide you toward your fullest potential. This is what makes Canterbury School more than just a place to learn-it's a place to become your best self. Canterbury School Photo - At Canterbury School, a balanced educational experience integrates academic achievement, personal growth, and community engagement. As a welcoming interfaith community, Canterbury fosters a sense of belonging, providing passionate educators and transformative opportunities that guide you toward your fullest potential. This is what makes Canterbury School more than just a place to learn-it's a place to become your best self.]()

(Catholic)
101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3800
New Milford, CT 06776
(860) 210-3800
Gr: 9-12 | 332 students Avg. class size: 12 students Sports: 18 | Extracurrculars: 18 Tuition & acceptance rate listed
565 Chase Parkway
Waterbury, CT 06708
(203) 236-9561
Waterbury, CT 06708
(203) 236-9561
Gr: PK-12 | 164 students Avg. class size: 12 students Sports: 11 Tuition listed
10 Main St
Cheshire, CT 06410
(203) 439-7250
Cheshire, CT 06410
(203) 439-7250
Gr: 9-12 | 369 students Avg. class size: 10 students Sports: 14 | Extracurrculars: 24 Tuition & acceptance rate listed
96 Essex Rd
Old Saybrook, CT 06475
(860) 388-3536
Old Saybrook, CT 06475
(860) 388-3536
Gr: PK-6 | 102 students Avg. class size: 17 students Sports: 1 | Extracurrculars: 7 Tuition & acceptance rate listed
333 Christian Street
Wallingford, CT 06492
(203) 697-2000
Wallingford, CT 06492
(203) 697-2000
Gr: 9-12 | 865 students Avg. class size: 12 students Sports: 24 Tuition & acceptance rate listed
45 Glenville Road
Greenwich, CT 06831
(203) 622-9240
Greenwich, CT 06831
(203) 622-9240
Gr: 1-8 | 265 students Avg. class size: 6 students Sports: 11 | Extracurrculars: 18 Tuition listed
1073 N Benson Rd
Fairfield, CT 06824
(203) 254-4200
Fairfield, CT 06824
(203) 254-4200
Gr: 9-12 | 757 students
2970 Bronson Road
Fairfield, CT 06824
(203) 259-2723
Fairfield, CT 06824
(203) 259-2723
Gr: K-9 | 197 students Avg. class size: 6 students Sports: 8 Tuition & acceptance rate listed
50 Loomis Place
New Haven, CT 06511
(203) 777-3464
New Haven, CT 06511
(203) 777-3464
Gr: K-9 | 435 students Avg. class size: 14 students Sports: 14 | Extracurrculars: 17 Tuition & acceptance rate listed
99 Green Hill Rd
Washington, CT 06793
(860) 868-7334
Washington, CT 06793
(860) 868-7334
Gr: 9-12 | 330 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 21 Tuition listed
35 Beachside Avenue
Greens Farms, CT 06838
(203) 256-7501
Greens Farms, CT 06838
(203) 256-7501
Gr: PK-12 | 713 students Avg. class size: 15 students Sports: 14 Tuition listed
200 N Maple Ave
Greenwich, CT 06830
(203) 625-8900
Greenwich, CT 06830
(203) 625-8900
Gr: PK-12 | 830 students
401 Old Church Rd
Greenwich, CT 06830
(203) 863-5600
Greenwich, CT 06830
(203) 863-5600
Gr: NS-12 | 1,251 student Tuition & acceptance rate listed
Show 44 more private schools in Connecticut (out of 79 total schools)
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