Boarding students at Walnut Hill are housed in eight dormitories. Students are generally assigned dormitories by grade level—with freshmen housed with sophomores and juniors housed with seniors—allowing for appropriate programming and support for students in each dorm. Dorms range in size from 15 to 50 students, and all are supervised by trained Dorm Parents. Students may live in single, double, or triple rooms. Most students share common bathrooms. New students should expect to have a roommate. All dormitories have a common living space with refrigerator, microwave, television, and DVD players for the enjoyment of all the residents.