Campus Ministry works to foster the total personal and spiritual growth of each young person and seeks to draw young people to responsible participation in the life, mission, and work of the Catholic Church.

Moderator: Sister Christine Kiley 

The Columbian Squires is a fraternal organization for Catholic young men, which helps them to develop as leaders who understand their faith, and who have a strong commitment to the Church. It is the official organization of the Knights of Columbus in America. The GCCHS Columbian Squires is sponsored by the Greensburg Knights of Columbus, Council 1480.

The organization is open to any Catholic freshman, sophomore, junior, or senior.

Moderator: Mr. David Ferranti​​

To help students to be conscientious of the needs of others and to respond to these needs in a spirit of Christian service. Interact is the student component of Rotary International that strives to promote service projects on the international, national, and local levels

Interact is open to all students who are willing to participate in a pre-set number of sponsored activities. An Interact board and officers are elected.

Moderator: 

Moderator: Mr. David Hull

This club is open to anyone who wants to make a positive impact on our world.

Moderator: Mrs. Christine Colcombe

Involvement in these committees will enrich a girl in many ways. They will confirm commitment to the church and strengthen the moral character as young women. It is hoped that they will become better leaders. Members are asked to give time, effort and enthusiastic support to the organization and the committees.

Moderator: Sister Christine Kiley
Interact Moderator:  Mrs. Erin Tiedeman