Mercy is home to the Catherine McAuley chapter of the National Honor Society and offers many leadership opportunities through the Student Council and Campus Ministry Board.

Youth and Government as well as Mock Trial give students real-life skills in practice settings.

Habitat for Humanity, Friends of Rachel, and the Mercy Service Program help students get involved with the community both in and outside of school.

[5] Varsity and junior varsity teams compete in sixteen sports: alpine skiing, basketball, bowling, cheerleading, crew, cross country, golf, indoor track, lacrosse, sailing, soccer, softball, swimming and diving, tennis, track and field, and volleyball.

[6] The teams have won numerous Section V championships in the areas of basketball, bowling, cross country, downhill skiing, soccer, softball, tennis, track and field, and volleyball.