Explore K-12 Private Schools in the U.S. & Worldwide

Deerfield Academy, a coeducational college-preparatory boarding school founded in 1797, is known for its high academic standards and cohesive school spirit. Deerfield nurtures its 630 students’ intellectual curiosity and encourages responsible citizenship through a rigorous curriculum. The outstanding faculty prepares students for competitive colleges and universities, challenging students in an academic program that includes Honors and Advanced Placement courses in nineteen subject areas, an extensive spring term elective program, and domestic and foreign off-campus study. Deerfield also provides over 120 varied athletic and extracurricular offerings. The 280-acre campus provides extraordinary facilities including an arts center and the Boyden Library, housing a broad-based collection of more than 75,000 items. The 80,000 square-foot Koch Center for Science, Mathematics and Technology houses 30 state-of-the-art classrooms and laboratory spaces, dedicated spaces for independent research, and a planetarium. Students, 35% supported by over $6.6 million in financial aid, are selected on the basis of academic promise, leadership potential, diversity of background, and the willingness to contribute to the school community.

Horace Mann is a co-educational college preparatory day school enrolling students in Nursery through Twelfth Grade. Among the top independent day schools in the country, Horace Mann is best known for a superb academic program that draws talented young people from three states and as far away as 50 miles. Horace Mann seeks to educate and nurture its students and to help them fulfill their potential. To attain this goal, the School provides a challenging and rigorous set of academic and extracurricular programs within a caring and supportive environment. Students are encouraged to test and learn about themselves, to develop a concern for others and to grow intellectually, physically, socially and emotionally. The School seeks to foster a capacity in each individual for clear and creative thought. The School encourages students to understand that learning is a lifelong endeavor that is valuable in itself.

The mission of Lakeside School is to develop in intellectually capable young people the creative minds, healthy bodies, and ethical spirits needed to contribute wisdom, compassion, and leadership to a global society. We provide a rigorous and dynamic academic program through which effective educators lead students to take responsibility for learning. We are committed to sustaining a school in which individuals representing diverse cultures and experiences instruct one another in the meaning and value of community and in the joy and importance of lifelong learning.

Milton Academy, engages faculty and students in intense and challenging preparation for college and for life, in an environment that stimulates and supports extraordinary intellectual and personal growth. Day in and day out, in and out of class, faculty connect vitally with students – setting sights high, bringing opportunities to light, tackling big questions, affirming students’ individuality, and building their confidence and skill. Not only do they succeed at the most competitive universities in the country, Milton graduates' awareness, creativity and competence empower them to fully commit themselves to meaningful endeavors of all kinds, throughout the world. Milton Academy is located just eight miles south of Boston.

Located one mile from the ocean, in the foothills of Santa Barbara County, Cate School is a coeducational college preparatory boarding school. Founded in 1910, the School delivers a demanding academic program resulting in a breadth and depth of scholarly inquiry. Cate School seeks students with the capacity to handle a demanding college-preparatory curriculum, with the curiosity to engage in our student-centered small classes, and with the compassion and character to be active and caring members of our small community. The student body of 265 students (83% are boarders) comes from 22 states and 19 foreign countries and is both academically talented and remarkably diverse (41% students of color). In an intimate setting, students and teachers together pursue high ideals. Cate's mission statement reads: "Through commitment, scholarship, companionship, and service, each member of the Cate community contributes to what our founder called "the spirit of this place...all compounded of beauty and virtue, quiet study, vigorous play, and hard work."

Founded in 1902, Brunswick School is an independent, college preparatory day school in Greenwich, Conn., providing character-based education for boys in Pre-Kindergarten through Grade 12.

Hopkins is a traditional, independent, coeducational day school of 686 students in grades 7-12. The School began with a dedication to the "breeding up of hopeful youths for the public service of the country in future times." More than three centuries later, Hopkins School continues to fulfill its original mission, and "hopeful" – connoting both the promise and the expectation of future good – remains the word that defines our educational approach and animates our aspirations. We define ourselves as a community of civility and learning, one that educates students from diverse backgrounds to a full measure of their talents and humanity. We seek to develop in our young people the habits of mind of scholars as the foundation for a lifelong love of learning; foster the courage to live and think as distinct individuals who embrace their responsibilities in the larger world; expose every student to the deep satisfaction that derives from service to others; enlarge the educational experience to include the creative joy and aesthetic sensibility of the artist, and the vitality and competitive spirit of the athlete; provide, through the School's advisers, the wisdom and goodwill necessary to guide our young people to confident self-reliance; and nurture the development of character essential to leading a rich and purposeful life.

With a beautiful campus and a distinguished history dating back to 1864, Peddie has long been recognized as one of the nation's finest boarding schools. Noted for its distinctive programs dedicated to academics, athletics, arts and residential life, Peddie provides a rigorous academic experience mixing tradition with innovation while focusing on the education of the whole child. Peddie's faculty is recognized for encouraging and inspiring bright and enthusiastic students to reach for new levels of achievement in an unusually friendly, genuinely supportive and remarkably diverse community.

Collegiate School is an independent school for boys in New York City. It is located on the Upper West Side of Manhattan and is a member of both the New York Interschool and the Ivy Preparatory School League.

Thacher trains young people in the art of living for their own greatest good and for the greatest good of their fellow citizens in a diverse and changing world. To that end, the School augments its challenging academic program with profound lessons learned from the care of a horse, teamwork on playing fields, outstanding instruction and opportunity in the arts, the give and take of everyday life with schoolmates and teachers, and adventures shared in the wilderness. The aim is to inspire and encourage hard work, integrity, self-reliance, a lifelong love of learning. Thacher students develop a reverence for truth, self-knowledge, and a deep concern for the world in which we live. Our students take part in a healthy, authentic community culture that supports them every step of the way. To learn more about Thacher please visit our website and consider a visit to campus. We would love to host you and show you what makes Thacher such a special community.

When you go to school immersed in the once-in-a-lifetime possibilities of a global, multilingual education, you launch into the world ready to learn anything, connect with anyone, and be exceptional anywhere. We inspire students to see the world as a place where friendships span continents, conversations flow naturally across languages, dreams expand beyond borders, and diverse experiences build deeper connection to humanity. As a world-class, accredited private school in Cambridge, Massachusetts, ISB is home to 500 students from age 2 through Grade 12. ISB students graduate with an American high school diploma and choose between two internationally renowned diplomas, the French or the International Baccalaureate, allowing them to thrive at leading universities worldwide.

St. Andrew's is a community of highly engaged students and teachers all living together on a spectacular 2,200-acre campus. Fully committed to our rigorous academic program, our students are dynamic, actively exploring their passions in athletics, the arts and service—both to humanity and to the environment. This close community is characterized by high expectations, trust, kindness and compassion. St. Andrew's values diversity. Over 40 percent of students receive over $4.5 million in financial aid. Students from all backgrounds bring their interests and passions—emerging as engaged and responsible citizens of the world.

As a college preparatory institution, St. Mark's School of Texas prepares boys and young men for each successive step of their academic careers. It is our mission to educate the "whole boy," providing each of our students with the tools necessary to be successful in and out of the classroom. Additionally, as a boys' school we are able to address clearly and directly the particular characteristics and learning needs that boys exhibit. Our highly qualified and outstanding faculty has carefully crafted a rich and varied curriculum aimed at helping students acquire knowledge and develop critical thinking and problem-solving skills. Teachers make sure that students go well beyond simply learning the facts. Marksmen read, write, and think critically across the arts and sciences and at all grade levels. The School's major objective is to prepare young men for lives of responsibility and leadership in a competitive and ever-changing world. To this end, we profess and uphold certain values including integrity, honor, courage, acceptance of responsibility for one's actions, the ability to defer gratification in pursuit of one's goals, service to the broader community, and commitment to working with others to make a difference on campus and in the world.

Known for academic rigor and close faculty-student relationships, Taft fosters personal responsibility, honor, and an achievement ethic in all areas of school life: intellectual, artistic, athletic, and extracurricular. Our 220-acre campus features: 59,500-volume library; Lady Ivy Kwok Wu Science and Math Center; Sony Virtuoso Language Lab; Mark W. Potter Art Gallery; 2 theaters; 18-hole golf course; 2 ice hockey arenas; 16 tennis courts (4 indoor); 8 squash courts; six-lane, all-weather track; 11 playing fields; 200-course curriculum. A diverse student body from 33 states and 27 countries is supported with $6.6 million in aid.

Founded in 1774, Newark Academy has a rich history as an independent, coeducational school where smart, motivated students are challenged by a rigorous academic program and an energized faculty committed to intellectual excellence. The culture prepares students for college and a lifetime of learning, while emphasizing the development of compassionate people.

Founded in 1865, St. Mark’s School is a premier coeducational boarding and day school serving students in grades 9–12. Located in Southborough, Massachusetts, just 25 miles west of Boston, our 250-acre campus features picturesque buildings, expansive fields, and faculty homes that create a true sense of community. At St. Mark’s, 374 students are guided by an exceptional faculty through a rigorous academic program complemented by robust offerings in athletics, the arts, leadership, and spiritual life. Our close-knit environment fosters meaningful relationships and supports students as they grow both intellectually and personally. With an average class size of 10 students and a student-to-faculty ratio of 6:1, students benefit from individualized attention and deep engagement in the classroom. Our curriculum includes more than 20 advanced courses, along with distinctive signature programs such as the STEM Fellowship, History Fellowship, Global Diploma, and Classics Diploma. These opportunities encourage students to pursue their interests at a high level while developing critical thinking, creativity, and global awareness. St. Mark’s is committed to cultivating character, leadership, and a strong sense of purpose. Our diverse and motivated student body is inspired by passionate educators who challenge and support them to reach their full potential. Graduates leave St. Mark’s exceptionally well prepared for success at highly selective colleges and universities, and for lives defined by courage, integrity, and impact. We invite you to take a closer look and discover what makes the St. Mark’s experience truly distinctive.

Hackley offers a rigorous, traditional curriculum, a residential faculty, strong athletics, a diverse student body, and extensive extracurricular activities. Graduates attend Ivy League and other highly selective colleges. Our 285-acre campus includes a landscaped grassy common, performing arts center, new middle school and science facilities, computer centers, art studios, extensive sports fields and courts and indoor pool. Hackley has a five-day boarding program, available for boys and girls, grades 9-12, who spend weekends with their families or legal guardians. Need-based financial aid is available.

One can’t help but be captivated by the enthusiasm, curiosity, creativity, and genuine warmth of the very special group of adults and young people from around the country and around the world who live and learn together in this 100 percent boarding community. In this day and age when we are all grappling with an increasing pace of change, competitive environment, and complexity of our shrinking global community, Episcopal is uniquely positioned to prepare our students not just to excel in outstanding colleges and universities but to take their place as caring and gifted leaders on a local and global level. For more than 175 years our students have thrived in our school’s rich array of academic offerings, embraced our commitment to personal honor, ethical leadership, and spiritual growth, and been guided and inspired by the close and caring relationships they develop with the adults here. Preparation for true leadership in this quickly changing future, however, demands that we offer our students even more. Our school’s innovative approach to curriculum and program that dives deeply into the opportunities and global connections of Washington, D.C., sets us apart and offers our students an educational experience unlike any other.

Trinity School is a college preparatory, coeducational independent day school for Grades K-12, located on the Upper West Side of New York City. Trinity School is a diverse community of learning with a more than 300-year history of creating engaged and inspired citizens. Our students are encouraged to reach their full potential as scholars, individuals, and members of society. We invite you to learn more about Trinity School and the opportunities we offer for growing minds.

Suffield Academy has 420 students from more than 25 countries and 20 American states. The school is located between New York and Boston with easy access to major international airports. Suffield has distinctive four-year college counseling and leadership development programs. More than $120 million has been invested in the Suffield campus over the past decade with new facilities for academic, athletics, arts, and community life. In 2026 more than 1,100 students applied for 120 available spaces at Suffield Academy.