Kingswood Oxford School Photo - KO graduates learn to navigate the academic and social complexities of the world. Their true strength lies in their ability to manage situations they haven't previously encountered, armed with confidence, independence, and resilience. As strong leaders, they listen, empower others, and get things done. As people of good character, they model a code of kindness grounded in kindness.

Best Connecticut Private High Schools Belonging to New England Association of Schools and Colleges (2025-26)

For the 2025-26 school year, there are 38 private high schools belonging to New England Association of Schools and Colleges serving 10,787 students in Connecticut. You can also find more schools membership associations in Connecticut.
The top ranked private high schools belonging to New England Association of Schools and Colleges in Connecticut include Hopkins School, Westminster School, and The Hotchkiss School.
The average tuition cost is $45,216, which is higher than the Connecticut private high school average tuition cost of $39,568.
37% of private high schools belonging to New England Association of Schools and Colleges in Connecticut are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private High Schools Belonging to New England Association of Schools and Colleges 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
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
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
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
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 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
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
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
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
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
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
Holy Cross High School
Holy Cross High School Photo - Be A Scholar, Be A Leader, Be Holy Cross
(Catholic)
587 Oronoke Rd
Waterbury, CT 06708
(203) 757-9248
Gr: 9-12 | 413 students Avg. class size: 20 students Sports: 17 | Extracurrculars: 37 Tuition listed
The Hotchkiss School
The Hotchkiss School Photo - Varsity Sailing Blue
11 Interlaken Road
Lakeville, CT 06039
(860) 435-3102
Gr: 9-12 | 627 students Avg. class size: 15 students Sports: 23 Tuition & acceptance rate listed
Kent School
Kent School Photo
(Episcopal)
1 Macedonia Road
Kent, CT 06757
(860) 927-6020
Gr: 9-12 | 504 students Avg. class size: 12 students Sports: 17 | Extracurrculars: 65 Tuition & acceptance rate listed
Kolbe Cathedral High School
Kolbe Cathedral High School Photo
(Catholic)
(2)
33 Calhoun Pl
Bridgeport, CT 06604
(203) 334-2554
Gr: 9-12 | 326 students Avg. class size: 22 students Sports: 9 | Extracurrculars: 4 Tuition & acceptance rate listed
Marianapolis Preparatory School
Marianapolis Preparatory School Photo
(Catholic)
26 Chase Road
Thompson, CT 06277
(860) 923-9245
Gr: 9-12 Avg. class size: 15 students Sports: 16 | Extracurrculars: 34 Tuition 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
Sacred Heart Greenwich
Sacred Heart Greenwich Photo
All-girls (Catholic)
(7)
1177 King Street
Greenwich, CT 06831
(609) 261-2273
Gr: PK-12 | 680 students Avg. class size: 13 students Sports: 17 | Extracurrculars: 17 Tuition & acceptance rate listed
St. Bernard School
St. Bernard School Photo - Saint Bernard School XBSS leaders.
(Catholic)
1593 Norwich New London Tpke
Uncasville, CT 06382
(860) 848-1271
Gr: 6-12 | 410 students Avg. class size: 19 students Sports: 14 | Extracurrculars: 37 Tuition listed
St. Paul Catholic High School
St. Paul Catholic High School Photo - Our school community comes together for Mass each month.
(Catholic)
1001 Stafford Ave
Bristol, CT 06010
(860) 584-0911
Gr: 9-12 | 397 students Avg. class size: 18 students Sports: 16 | Extracurrculars: 20 Tuition listed
Suffield Academy
Suffield Academy Photo - Bell Hill
185 North Main Street
Suffield, CT 06078
(860) 386-4400
Gr: 9-12 | 410 students Avg. class size: 10 students Sports: 24 Tuition & acceptance rate listed
The Taft School
The Taft School Photo - Taft's 226-acre campus is in New England's beautiful Litchfield County, Connecticut.
(2)
110 Woodbury Road
Watertown, CT 06795
(860) 945-7777
Gr: 9-12 | 580 students Avg. class size: 11 students Sports: 17 Tuition & acceptance rate listed
TLC Rolling Ridge
TLC Rolling Ridge Photo
Special Education School
Rt. 169
Brooklyn, CT 06234
(860) 774-5619
Gr: K-12 | 27 students Avg. class size: 5 students
Westminster School
Westminster School Photo - Armor Academic Center on the campus of Westminster School.
995 Hopmeadow Street
Simsbury, CT 06070
(860) 408-3043
Gr: 9-12 | 412 students Avg. class size: 12 students Sports: 16 | Extracurrculars: 21 Tuition & acceptance rate listed
Devereux Glenholme School
Special Education School
81 Sabbaday Lane
Washington, CT 06793
(860) 868-7377
Gr: 5-12 | 57 students Avg. class size: 10 students Sports: 4 | Extracurrculars: 15 Tuition listed
Forman School
Forman School Photo - Fall Sports: Boys Soccer, Girls Soccer, Boatbuilding, Cross-Country, Rock Climbing, Girls Volleyball
Special Education School
12 Norfolk Rd
Litchfield, CT 06759
(860) 567-1802
Gr: 9-12 | 212 students Avg. class size: 8 students Sports: 20 | Extracurrculars: 11 Tuition & acceptance rate listed
Franklin Academy
Franklin Academy Photo - Franklin Academy is nestled on 75 acres in the beautiful Connecticut River Valley
140 River Road
East Haddam, CT 06423
(860) 873-2700
Gr: 8-12 | 85 students Avg. class size: 6 students Sports: 5 | Extracurrculars: 3 Tuition listed
Marvelwood School
Marvelwood School Photo - Our beautiful 83-acre campus is located in Kent, Connecticut. We welcome you to visit.
(2)
476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047
Gr: 9-12 | 120 students Avg. class size: 7 students Sports: 16 | Extracurrculars: 13 Tuition & acceptance rate listed
The Master's School
The Master's School Photo - Comprehensive Art Program
(Christian)
(4)
36 Westledge Rd
West Simsbury, CT 06092
(860) 651-9361
Gr: PK-12 | 229 students Avg. class size: 11 students Sports: 9 Tuition & acceptance rate listed
New England Jewish Academy
New England Jewish Academy Photo - Students in front of the new Grinspoon-Konover Building.
(Jewish)
300 Bloomfield Avenue
West Hartford, CT 06117
(860) 231-0317
Gr: PK-12 | 109 students Avg. class size: 9 students Sports: 4 | Extracurrculars: 13 Tuition & acceptance rate listed
Pine Point School
89 Barnes Rd
Stonington, CT 06378
(860) 535-0606
Gr: PK-9 | 166 students Avg. class size: 11 students Sports: 8 | Extracurrculars: 7 Tuition listed
Show 3 more private schools in Connecticut (out of 38 total schools)
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