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Top 20 Best Connecticut Nonsectarian Private High Schools (2025)

For the 2025 school year, there are 115 nonsectarian private high schools in Connecticut. You can also find more religiously affiliated schools in Connecticut.

The nonsectarian private high schools in Connecticut include Choate Rosemary Hall, Hopkins School, and The Loomis Chaffee School.

King School Photo - Grade 4 students discussing the world around them in science class.

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.

Fusion Academy Fairfield Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.

Easton Country Day School Photo - Easton Country Day

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.

Bridgeport International Academy Photo - Graduation!

St. Luke's School Photo - J-Term is a week-long, student-led learning experience that encourages 9th graders to dig deeply into and solve issues they care about.

Fusion Academy Greenwich Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.

Forman School Photo - The academic program at Forman School offers a college preparatory curriculum supported by a full-service learning center. Our goal is to provide an optimal learning experience for our students.

Sustainable Farm School Photo - Students work collaboratively with their teachers and students of different ages and abilities.

The Taft School Photo - Taft's 226-acre campus is in New England's beautiful Litchfield County, Connecticut.

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.

Westminster School Photo - Armor Academic Center on the campus of Westminster School.

Cheshire Academy Photo - Cheshire Academy is home to students from over 30 different countries who chose the Academy because of our reputation as one of the best private schools in the United States. The tradition of enrolling international students at Cheshire Academy dates back to 1850, making this school among the first to enroll students from other countries.

The Frederick Gunn School Photo - Bourne Hall

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