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 GCC Columbian Squires are part of a national fraternity for Catholic boys under the age of eighteen. The GCC Columbian Squires are sponsored by the Greensburg Knights of Columbus, Council 1480. The Columbian Squires promote the exercise of good citizenship, patriotism, stewardship, and scholarship as they develop on matters of spiritual growth and civic responsibility.

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: Mrs. Erin Tiedeman

Moderator: Mr. David Hull

Involvement in these committees will enrich a girl in many ways. They will confirm commitment to the church and strengthen their 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