Nursery through Kindergarten is housed at 11 East 89th Street, while the Elementary School division resides at 4 East 90th Street. The Middle and Upper Schools are located at 1 West 88th Street.

Through group activities that capitalize on their love of learning and innate curiosity, children in the Early Childhood division (Nursery –Kindergarten) learn developmentally-appropriate skills, begin to develop critical-thinking, and explore different cultures through the foreign language program (French and Spanish). Students in the Elementary School division (Grades 1 – 5) further develop their academic and problem-solving skills using traditional tools as well as computers to support their in-class work. Trevor Day School's AfterSchool program, ENCORE, runs daily from 3:00-6:30 pm for Kindergarten to fifth grade  students. Beginning in Grade 3, students participate in Outdoor Education using a number of New York State facilities, including Clearpool, Black Rock Forest, and Quinipet Camp & Retreat Center on Shelter Island to do team-building activities and environmental studies. Starting in Grade 5, students use their own laptop computers in virtually all areas of their academic study.

In the Middle School (Grades 6 – 8), when students’ attitudes about learning and self-esteem are most challenged, Trevor supports their intellectual and social growth with a unique advisory program and a school life that is centered in the Common Room, a common space shared by students and faculty that facilitates collaboration. Middle School students can participate in a variety of AfterSchool activities including athletics, music conservatory, and martial arts.

In the High School (Grades 9 – 12), students pursue a vigorous college-preparatory program that cultivates independent thought and imaginative problem solving. Students continue to participate in a rich visual and performing arts program. The large student/faculty High School Center serves as the heart of the division and makes collaboration between and among students and faculty possible. The state-of-the-art Science Center for Grades 8 through 12 reflects an innovative approach to science that emphasizes active problem-solving and inquirybased learning. Community service, which continues to be an integral part of our students learning experience, culminates in an 80-hour requirement, with opportunity for individual and group projects. As a member of several athletic leagues, Trevor teams compete in soccer, volleyball, cross-counrty, basketball, softball, tennis, track and field, and baseball.

Trevor Day School invites children of all races, religions, national and ethnic backgrounds to apply for admission. A financial aid program supports approximately 20% of the student population (Kindergarten - Grade 12), which is drawn from all parts of New York City.

Trevor Day School is strongly committed to equal opportunities for all individuals. The School considers applicants without unlawful discrimination as to race, creed, color, national origin, gender, age, disability, marital status, sexual orientation, citizenship or any other basis protected by law. In addition, all School employees, regardless of position, are expected to maintain and live up to the true meaning of non-discrimination.