Official account of Detroit Country Day School. A college preparatory, co-educational, liberal arts education for preschool through grade 12. (248) 646-7717 A pre-K through grade 12 private school with superior college preparation, athletics and the arts. Detroit Country Day School strives to provide a superior college preparatory, liberal arts educational opportunity to young people of cultural and intellectual diversity. Within a dignified and supportive setting, the school promotes the academic, intellectual, artistic, moral, character, leadership and physical development of all students so that they can pursue excellence in their lives and careers, and play effective roles in their families and communities.