The Mission of Greenfield School, a non-sectarian independent school, is to promote the development of the total student:
Academically: through a balanced, challenging college preparatory program
Socially: through leadership opportunities, extracurricular activities, and community service
Aesthetically: through a program of fine arts
Physically: through interscholastic athletics and a physical education program
Morally: through affirmation of honesty, integrity, responsibility, tolerance, and the American ideals of freedom and democracy.