Private School Review - Established 2003
Ridgefield Academy Photo - Our 42-acre campus offers some of the best views in Fairfield and Westchester Counties! Our faculty use these spectacular grounds as an extension of their classroom.
Ridgefield Academy

Best Connecticut Private Elementary Schools Belonging to National Association of Independent Schools (NAIS) (2025-26)

For the 2025-26 school year, there are 53 private elementary schools belonging to National Association of Independent Schools (NAIS) serving 16,557 students in Connecticut. You can also find more schools membership associations in Connecticut.
The top ranked private elementary schools belonging to National Association of Independent Schools (NAIS) in Connecticut include Hopkins School, Brunswick School, and Hamden Hall Country Day School.
The average tuition cost is $48,845, which is higher than the Connecticut private elementary school average tuition cost of $24,553.
13% of private elementary schools belonging to National Association of Independent Schools (NAIS) in Connecticut are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private Elementary Schools Belonging to National Association of Independent Schools (NAIS) in Connecticut (2025-26)

School
Location
Quick Facts
Hamden Hall Country Day School
Hamden Hall Country Day School Photo - Between 15 and 20 percent of our graduating student-athletes compete at the collegiate Division I, II and III levels.
(Christian)
(4)
1108 Whitney Ave
Hamden, CT 06517
(203) 752-2610
Gr: NS-12 | 650 students Avg. class size: 12 students Sports: 21 | Extracurrculars: 45 Tuition listed
Hopkins School
Hopkins School Photo - Hopkins is a grade 7-12 grade gender-inclusive learning community located on 108 acres overlooking New Haven.
(6)
986 Forest Road
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
King School
King School Photo - Grade 1 students participating in STEM activities.
1450 Newfield Ave
Stamford, CT 06905
(203) 322-3496
Gr: PK-12 | 718 students Avg. class size: 12 students Sports: 19 | Extracurrculars: 42 Tuition listed
Kingswood Oxford School
Kingswood Oxford School Photo - Our mission and core values are the grounding force within our school, its very soul. Our mission is why we are here. Our values are what we do. Ask any KO student about the core value that resonates with them the most, and you`ll get thoughtful and meaningful answers. 'Care beyond self' always tops the list.
(1)
170 Kingswood Road
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
New Canaan Country School
New Canaan Country School Photo - Academics, arts, music and athletics are woven into our students' day to pique their curiosity and instill a joy of learning.
(9)
635 Frogtown Road
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
Rectory School
Rectory School Photo - Rectory School, nestled on 138 acres in Pomfret, Connecticut, is a distinguished K-9 private institution renowned as a "Junior Boarding School." Offering both 5-day and 7-day boarding options for students in grades 5-9, Rectory ensures a comprehensive educational experience.
528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
Gr: K-9 Avg. class size: 10 students Sports: 23 | Extracurrculars: 27 Tuition listed
Renbrook School
Renbrook School Photo - Renbrook School provides students in preschool through grade eight with a robust, purposeful, and developmentally appropriate educational experience of the highest caliber. Small classes in an intimate community of supportive and caring teachers allow for an individualized approach to learning enabling each child to learn to take appropriate risks and identify and cultivate his or her own strengths.
(17)
2865 Albany Avenue
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
Ridgefield Academy
Ridgefield Academy Photo - In a school that is Pre-K to Grade 8 by design, childhood is valued and kids are encouraged to stay kids. Students have ample opportunities to play outdoors and indoors, and often can be seen rushing to recess each day on the Outdoor Campus Center, a bi-level playscape that provides endless opportunities for play and learning.
(12)
223 West Mountain Rd
Ridgefield, CT 06877
(203) 894-1800
Gr: NS-8 | 535 students Avg. class size: 10 students Sports: 12 | Extracurrculars: 11 Tuition & acceptance rate listed
St. Luke's School
St. Luke's School Photo
377 North Wilton Road
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
Watkinson School
Watkinson School Photo - 225 students from 43 towns, reflecting a wide range of academic, personal and socioeconomic backgrounds. Faculty includes 43 teachers, 26 of whom hold master's degrees or above. Student-teacher ratio 6:1. Average class size 14
(2)
180 Bloomfield Avenue
Hartford, CT 06105
(860) 236-5618
Gr: 6-12 | 240 students Avg. class size: 13 students Sports: 9 | Extracurrculars: 14 Tuition & acceptance rate listed
The Williams School
The Williams School Photo
(5)
182 Mohegan Avenue
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
The Long Ridge School
The Long Ridge School Photo - Micheal G. Harris Arts and Athletics Center
(7)
478 Erskine Road
Stamford, CT 06903
(203) 322-7693
Gr: NS-5 | 94 students Avg. class size: 14 students Extracurrculars: 8 Tuition listed
St. Thomas More School
St. Thomas More School Photo
(2)
45 Cottage Road
Oakdale, CT 06370
(860) 823-3861
Gr: 8-12 | 162 students Avg. class size: 9 students Sports: 9 | Extracurrculars: 13 Tuition & acceptance rate listed
St. Thomas's Day School
St. Thomas's Day School Photo - Outdoor education is an important part of our Science curriculum!
(Episcopal)
(6)
830 Whitney Avenue
New Haven, CT 06511
(203) 776-2123
Gr: K-6 | 126 students Avg. class size: 20 students Sports: 1 | Extracurrculars: 3 Tuition listed
All Saints Catholic School
(Catholic)
139 W Rocks Rd
Norwalk, CT 06851
(203) 847-3881
Gr: PK-8 | 560 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 1 Tuition & acceptance rate listed
Bi-cultural Hebrew Academy
(Jewish)
(3)
2186 High Ridge Rd
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
All-boys
100 Maher Avenue
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
Chase Collegiate School
Chase Collegiate School Photo - Chase Collegiate School is situated on a 47 acre campus in Waterbury, CT. The School is comprised of 10 buildings, and hosts an outdoor pavilion, tennis courts, lacrosse, soccer, baseball and softball fields. The iconic pond in the center of campus is used for outdoor science lessons and winter ice skating.
565 Chase Parkway
Waterbury, CT 06708
(203) 236-9561
Gr: PK-12 | 164 students Avg. class size: 12 students Sports: 11 Tuition listed
The Children's Tree Montessori School
The Children's Tree Montessori School Photo - Learning to make words with the movable alphabet in the primary (preschool) classroom.
Montessori School
(4)
96 Essex Rd
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
Eagle Hill School
Eagle Hill School Photo - Eagle Hill School's Campus
Special Education School
(5)
45 Glenville Road
Greenwich, CT 06831
(203) 622-9240
Gr: 1-8 | 265 students Avg. class size: 6 students Sports: 11 | Extracurrculars: 18 Tuition listed
Fairfield Country Day School
Fairfield Country Day School Photo - FCDS Campus
All-boys
(2)
2970 Bronson Road
Fairfield, CT 06824
(203) 259-2723
Gr: K-9 | 197 students Avg. class size: 6 students Sports: 8 Tuition & acceptance rate listed
Foote School
Foote School Photo
(3)
50 Loomis Place
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
Greens Farms Academy
Greens Farms Academy Photo
35 Beachside Avenue
Greens Farms, CT 06838
(203) 256-7501
Gr: PK-12 | 713 students Avg. class size: 15 students Sports: 14 Tuition listed
Greenwich Academy
All-girls
(2)
200 N Maple Ave
Greenwich, CT 06830
(203) 625-8900
Gr: PK-12 | 830 students
Greenwich Country Day School
401 Old Church Rd
Greenwich, CT 06830
(203) 863-5600
Gr: NS-12 | 1,251 student Tuition & acceptance rate listed
Horace Mann School John Dorr Nature Laboratory
220 Nettleton Hollow Rd
Washington, CT 06793
(860) 868-2230
Gr: 2-12 | 1,330 student
Indian Mountain School
Indian Mountain School Photo
211 Indian Mountain Road
Lakeville, CT 06039
(860) 435-0871
Gr: PK-9 | 320 students Avg. class size: 12 students Sports: 19 | Extracurrculars: 23 Tuition & acceptance rate listed
The Oxford Academy
The Oxford Academy Photo - Oxford Academy is set along the vibrant shoreline of Connecticut. Our family style community of students and faculty are stewards to local beaches and waterways. They embrace the many rich offerings of the area including museums, volunteering and athletic competitions with shoreline schools.
All-boys
(4)
1393 Boston Post Road
Westbrook, CT 06498
(860) 399-6247
Gr: 8-12 | 48 students Avg. class size: 1 student Sports: 8 | Extracurrculars: 13 Tuition & acceptance rate listed
Rumsey Hall School
Rumsey Hall School Photo
201 Romford Rd
Washington Depot, CT 06794
(860) 868-0535
Gr: PK-9 | 328 students Avg. class size: 12 students Sports: 17 Tuition & acceptance rate listed
The Unquowa School
981 Stratfield Road
Fairfield, CT 06825
(203) 336-3801
Gr: PK-8 | 174 students Avg. class size: 12 students Sports: 3 | Extracurrculars: 5 Tuition & acceptance rate listed
Washington Montessori School
Washington Montessori School Photo - The Lower School students (3-6 year olds) are curious about the world and the Montessori materials help them learn about geography and maps.
Montessori School
(8)
240 Litchfield Tpke
New Preston Marble Dale, CT 06777
(860) 868-0551
Gr: PK-8 | 256 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 2 Tuition listed
Waterside School
Waterside School Photo - During the week of June 18, Waterside School welcomed back rising juniors and seniors for an intensive College Boot Camp. Students from Waterside's class of 2012 and class of 2013 worked all week on college essays, resumes, and interview practice. Guidance counselors and directors of admission shared their expertise on college affordability and the college search, and juniors and seniors.
770 Pacific St
Stamford, CT 06902
(203) 975-8579
Gr: PK-5 | 134 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 9 Tuition & acceptance rate listed
Whitby School
Whitby School Photo - After raising caterpillars to become butterflies, our youngest Stepping Stones students (18 months - 3 years) set them free in the garden.
(12)
969 Lake Avenue
Greenwich, CT 06831
(203) 302-3900
Gr: NS-8 | 346 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 25 Tuition & acceptance rate listed
Wooster School
Wooster School Photo
91 Miry Brook Rd
Danbury, CT 06810
(203) 830-3911
Gr: 5-12 | 325 students Avg. class size: 12 students Sports: 12 | Extracurrculars: 16 Tuition listed
Catholic Academy Of New Haven
(Catholic)
351 Mckinley Ave
New Haven, CT 06515
(203) 387-5693
Gr: K-8 | 121 students
Show 18 more private schools in Connecticut (out of 53 total schools)
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