Delbarton is an independent college preparatory school for boys grades seven through twelve. The School is administered by the Roman Catholic Benedictine monks of St. Mary's Abbey and is rooted in the values of the Christian community and in the monastic tradition of a strong liberal arts education. The Delbarton community comprises a faculty of eighty men and women and a student body of approximately five hundred and forty boys. The School welcomes individuals of every race, religious belief, and national and ethnic origin who wish to contribute to the community and to be nourished by it.

Delbarton seeks to enroll boys of good character who have demonstrated scholastic achievement and capacity for further growth. In turn, the faculty strives to support each boy's efforts toward intellectual development and to reinforce his commitment to help build a community of accountable persons. The faculty encourages each boy to become an independent seeker of information, not a passive recipient. Each boy must assume responsibility for gaining both knowledge and judgment, which will strengthen his faith, his membership in the life of the school, and his contribution to broader society.