Discover everything the highest Niche ranked all-girls Catholic high school in PA has to offer

Established at Chestnut Hill in 1858, Mount Saint Joseph Academy is a Catholic, college preparatory school for girls located outside of Philadelphia with a mission of empowering young women to realize their fullest potential.

The Mount welcomes applications from students who are lifelong learners seeking a challenging, in-depth, dynamic education. You can learn more about our admission process by contacting our our Admission team at or 215.233.3177.

Explore our Publication and Video Library to learn more about the admission process, see what sets a Mount education apart, and read about our students.

Visiting is one of the best ways to determine if the Mount is right for you. Families are invited to join us at Open House, and parents can learn more during our Mornings at the Mount events. Be sure to check out all the opportunities to visit the Mount, including personal tours, shadow days, and more. We can't wait to see you!

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Mount Saint Joseph Academy is accredited by the Pennsylvania Association of Independent Schools (PAIS) and was previously named a U.S. Department of Education National Blue Ribbon School.