Welcome
We are St Mary's School of Piscataway, serving prekindergarten three through eighth grade. St. Mary's promotes the spiritual, intellectual, social and emotional development of our students. Our campus is located on the banks of Piscataway Creek in Clinton, Maryland, in southern Prince George County. We are located between Clinton, Accokeek, Fort Washington, and Waldorf.
Latest News
The AlphaBEST extended day program is available before and after school for kindergarten through 8th grades.
Catholic Schools Week took place on Sunday, January 26 through Friday, January 31.
We are thrilled to announce that our spring clubs are now open for registration!
There is no school on Monday, February 17 in observance of Presidents Day. School resumes on Tuesday, February 18.
Spring picture day and 8th grade picture day will take place on Thursday, March 20.
St. Mary's School follows PG County Public Schools decisions regarding inclement weather.
The 2025–2026 ADW Financial Aid Application is now open! The deadline is Friday, February 21, 2025.