When Holy Names Academy, a Pomona boarding school for girls, closed in 1949, the Msgr.

Thomas P. English reopened it as Pomona Catholic High School, staffed by the Felician Sisters.

[5] The Sacred Heart Fathers have staffed and administered the school since its beginning in La Verne.

The courage and capacity for self-sacrifice in the cause of others, is encouraged as an impetus toward social causes in the lives of Damien's students.

In 2015, the basketball team won the California Interscholastic Federation State championship (Division III) by defeating Campolindo High of Moraga (CIF North Coast Section) by the score of 70-57 at Haas Pavilion on the campus of the University of California, Berkeley.

[7] Each of Damien's freshmen classes draws from an average of over 75 different elementary and junior high schools for youths from Los Angeles and San Bernardino counties.