Marywood University is a co-educational, Catholic liberal arts university located on a 115-acre (0.47 km2) campus in Scranton, Pennsylvania, United States, within the Diocese of Scranton. Established in 1915 by the Sisters, Servants of the Immaculate Heart of Mary, Marywood currently enrolls more than 3,400 students in a variety of undergraduate, graduate, and doctoral programs. The university has a national arboretum with more than 100 types of trees and shrubs. Marywood's Catholic identity coupled with its mission to educate students to "live responsibility in an interdependent world" encourages students to be socially responsible agents of change.