Housatonic Valley Waldorf School Photo - Pre-k and Kindergarten

Best Connecticut Nonsectarian Private Schools (2025-26)

For the 2025-26 school year, there are 204 nonsectarian private schools in Connecticut. You can also find more religiously affiliated schools in Connecticut.
The top ranked nonsectarian private schools in Connecticut include Choate Rosemary Hall, Hopkins School, and Brunswick School.

Top Ranked Nonsectarian Private Schools in Connecticut (2025-26)

School
Location
Quick Facts
Easton Country Day School
Easton Country Day School Photo - Easton Country Day
(13)
660 Morehouse Road
Easton, CT 06612
(203) 268-5530
Gr: PK-12 | 246 students Avg. class size: 12 students Sports: 5 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
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
Westover School
Westover School Photo
All-girls
(2)
1237 Whittemore Road
Middlebury, CT 06762
(203) 577-4521
Gr: 9-12 | 192 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 26 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
285 Lafayette Street
Bridgeport, CT 06604
(203) 334-3434
Gr: 9-12 | 62 students Avg. class size: 12 students Extracurrculars: 6 Tuition & acceptance rate listed
Fusion Academy Fairfield
Fusion Academy Fairfield Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
Alternative School
777 Commerce Drive, Suite 100
Fairfield, CT 06824
(877) 673-8893
Gr: 6-12 | 14 students Avg. class size: 1 student Tuition listed
Fusion Academy Greenwich
Fusion Academy Greenwich Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
Alternative School
66 Gatehouse Road
Stamford, CT 06902
(877) 673-8893
Gr: 6-12 Avg. class size: 1 student Tuition 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
Adelbrook
Special Education School
(1)
60 Hicksville Rd
Cromwell, CT 06416
(860) 635-5801
Gr: 5-12 | 79 students
Adelbrook-the Learning Center Of Manchester
Special Education School
42 Prospect St
Manchester, CT 06040
(860) 645-1255
Gr: K-6 | 26 students
ATLAS - Academic Theatre Lab on Audubon
ATLAS - Academic Theatre Lab on Audubon Photo
Special Program Emphasis
100 Audubon St.
New Haven, CT 06510
(203) 624-5189
Gr: 7-9 | 20 students Avg. class size: 15 students 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.
All-boys
500 Old Farms Rd
Avon, CT 06001
(860) 404-4100
Gr: 9-12 | 415 students Avg. class size: 12 students Sports: 15 Tuition listed
Belden Hill Montessori
Montessori School
345 Belden Hill Rd
Wilton, CT 06897
(203) 762-8500
Gr: PK-K | 24 students
Benhaven Academy
Special Education School
50 N Plains Hwy
Wallingford, CT 06492
(203) 774-0008
Gr: 5-12 | 32 students
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
The Burlington Academy Of Learning
The Burlington Academy Of Learning Photo - The Burlington Academy of Learning
Daycare / Preschool
10 Covey Rd.
Burlington, CT 06013
(860) 675-3598
Gr: PK-K | 58 students Avg. class size: 14 students Extracurrculars: 5 Tuition & acceptance rate listed
565 Chase Parkway
Waterbury, CT 06708
(203) 236-9561
Gr: PK-12 | 164 students Avg. class size: 12 students Sports: 11 Tuition listed
Cheshire Academy
Cheshire Academy Photo - Character development has long been a priority at Cheshire Academy. The Eight Pillars of Bowden are the ways in which we demonstrate our core values and basic beliefs: Respect, Responsibility, Caring, Civility, Citizenship, Morality, Fairness and Trustworthiness.
10 Main St
Cheshire, CT 06410
(203) 439-7250
Gr: 9-12 | 369 students Avg. class size: 10 students Sports: 14 | Extracurrculars: 24 Tuition & acceptance rate 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
Choate Rosemary Hall
Choate Rosemary Hall Photo - A community like no other, Choate is a place where you never have to do it alone. Advisers, peers, and the entire community are bonded by mutual respect, a passion for learning, and a spirit of supporting and challenging one another:
333 Christian Street
Wallingford, CT 06492
(203) 697-2000
Gr: 9-12 | 865 students Avg. class size: 12 students Sports: 24 Tuition & acceptance rate listed
Connecticut Junior Republic
All-boys | Special Education School
(3)
550 Goshen Road
Litchfield, CT 06759
(860) 567-9423
Gr: 7-12 | 28 students
Connecticut Junior Republic-bristol
All-girls | Special Education School
(1)
30 Pleasant St
Bristol, CT 06010
(860) 845-8010
Gr: 6-12 | 59 students
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
Eagle House Education Program
Special Education School
1680 Albany Ave
Hartford, CT 06105
(860) 297-0552
Gr: 1-8 | 20 students
The Ethel Walker School
The Ethel Walker School Photo
All-girls
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
Gr: 7-12 | 226 students Avg. class size: 7 students Sports: 15 | Extracurrculars: 51 Tuition & acceptance rate 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
99 Green Hill Rd
Washington, CT 06793
(860) 868-7334
Gr: 9-12 | 330 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 21 Tuition listed
Show 100 more private schools in Connecticut (out of 204 total schools)
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