The campus formerly occupied by Saint Peter-Marian's is situated upon a hill in a residential neighborhood on Grove St in Worcester, less than one mile from the border with the town of Holden, Massachusetts.

The school has been abandoned since its 2020 closure, and the non-profit senior housing agency Goodard/Homestead plans to demolish and redevelop the cite into a 145 unit retirement home.

In 2003 the campus was expanded through the purchase of a nearby nursing home, which was extensively renovated and served as the building for the junior high school.

The five core academic subjects in the curriculum were English, social studies, mathematics, science, and religion.

Students could also take elective classes in foreign language, health, computer science, art, music, theater, business, and marketing.

Saint Peter-Marian offered a strong Advanced Placement curriculum for students in grades ten through twelve.

The VHS program allowed students to take courses via Internet instruction in many subjects that were not offered on site at St. Peter-Marian.

Girls participated in cross country, soccer, field hockey, volleyball, swimming and diving, basketball, competitive cheerleading, indoor track, skiing, tennis, softball, track & field, golf, dance and lacrosse.

The Boys Baseball team had one of the strongest reputations in Central Massachusetts, having advanced to district play for 18 straight years.

The Girls Softball team went undefeated in the 2015 season including winning the State Championship.

The Boys Football team had a highly successful run in the 1990s, winning 5 league Super Bowls and ranking seventh in Massachusetts in 1994.

Senior high school productions included Cinderella, The Sound of Music, Shout!

The Diocese of Worcester attributed these trends to broader demographic shifts and financial pressures on families.

The Diocese decided that merging the schools would allow for a more efficient use of resources while ensuring the continuation of Catholic education in Worcester.

The Diocese had previously forgiven outstanding construction loans for St. Peter-Marian and Holy Name, but other debts remained.

[8] Robert Shauris was involved in a 1993 lawsuit alleging abuse of two boys in the mid-1980s while he worked at St. Bernard’s Catholic High School, another diocesan institution.