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South Kent School

Best Connecticut Private High Schools Belonging to No Membership Association (2025-26)

For the 2025-26 school year, there are 155 private high schools belonging to No Membership Association in Connecticut. You can also find more schools membership associations in Connecticut.
The top ranked private high schools belonging to No Membership Association in Connecticut include Choate Rosemary Hall, Hopkins School, and Brunswick School.

Top Ranked Private High Schools Belonging to No Membership Association 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
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
Immaculate High School
Immaculate High School Photo - Students studying / socializing together in our Learning Commons
(Catholic)
(11)
73 Southern Blvd
Danbury, CT 06810
(203) 744-1510
Gr: 9-12 | 384 students Avg. class size: 15 students Sports: 17 | Extracurrculars: 25 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
St. Joseph High School
St. Joseph High School Photo - St Joseph High School, Trumbull CT
(Catholic)
(4)
2320 Huntington Tpke
Trumbull, CT 06611
(203) 378-9378
Gr: 9-12 | 678 students Avg. class size: 15 students Sports: 21 | Extracurrculars: 35 Tuition 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
South Kent School
South Kent School Photo
All-boys (Episcopal)
(2)
40 Bulls Bridge Road
South Kent, CT 06785
(860) 927-3539
Gr: 9-12 | 170 students Avg. class size: 15 students Sports: 13 | 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
Bridgeport International Academy
Bridgeport International Academy Photo - Graduation!
(3)
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
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
Academy Of The Holy Family
Academy Of The Holy Family Photo - International Day
All-girls (Catholic)
54 W Main St. Box 691
Baltic, CT 06330
(860) 822-9272
Gr: 9-12 | 30 students Avg. class size: 8 students Sports: 3 | Extracurrculars: 13 Tuition & acceptance rate listed
Adelbrook
Special Education School
(1)
60 Hicksville Rd
Cromwell, CT 06416
(860) 635-5801
Gr: 5-12 | 79 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
Benhaven Academy
Special Education School
50 N Plains Hwy
Wallingford, CT 06492
(203) 774-0008
Gr: 5-12 | 32 students
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
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.
(Catholic)
101 Aspetuck Avenue
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
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
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
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
Christian Heritage School
Christian Heritage School Photo - CHS Kindergarten is reputed to have one of the highest quality programs in all of Fairfield County. Small classes, with a supportive and engaging environment are what gives young children their educational advantage.
(Christian)
(21)
575 White Plains Rd
Trumbull, CT 06611
(203) 261-6230
Gr: K-12 | 385 students Avg. class size: 18 students Sports: 8 | Extracurrculars: 14 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
East Catholic High School
East Catholic High School Photo
(Catholic)
115 New State Rd
Manchester, CT 06042
(860) 649-5336
Gr: 9-12 | 479 students Avg. class size: 23 students Sports: 19 Tuition & acceptance rate listed
Emmanuel Christian Academy
(Baptist)
(1)
569 Maple Hill Ave
Newington, CT 06111
(860) 667-3407
Gr: PK-12 | 421 students Avg. class size: 20 students Sports: 5 | Extracurrculars: 3 Tuition listed
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
Show 100 more private schools in Connecticut (out of 155 total schools)
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