North Shore Country Day School is a selective prep school in Winnetka, Illinois. It took its current form as a coeducational school in 1919 during the Country Day School movement, though it started as the Rugby School for Boys (1893-1900) and Girton School for Girls (1900-1918). It consists of a lower school, a middle school, and an upper school. North Shore Country Day School offers a liberal arts education with students who represent the community values of respect and inclusiveness.