There are 8 classes in the Junior School and 6 classes in the Senior School. The school provides for students with a moderate or severe intellectual disability. Some students have more than one additional disability. Kurrambee's school community extends over a wide geographic area. Students are enrolled from as far afield as East Kurrajong, Cattai, Mulgoa, Winmalee and Quakers Hill .
Most families come from an Australian ethnic background.
Thirteen families come from other ethnic backgrounds, with a predominance of Indian. Only three families use another language at home. Four families are of Aboriginal background. As most students with a moderate intellectual disability are now being enrolled in support units in regular schools, the number of students with a severe intellectual and multiple disabilities is proportionally increasing.