The Advisory Board is a group that helps the pastor and school administration run the school. They offer advice that follows the rules from the diocese and the state. Their goal is to make sure that as many students as possible get a good Christian education and become committed to Jesus Christ.

Established in the 1950s, the St. John Fathers Club is a group of fathers from St. John School who care deeply about the school. They work diligently to provide a great education, opportunities, and a good environment for the kids and families in Iberville Parish and nearby areas. They give their time, prayers, and resources to make the school the best it can be for the children. They invite all parents, grandparents, and other caring family members to join them.

The mission of St. John Home and School Association is to: 

• support the faculty and school administration
• foster a caring, Christian community of parents
• strengthen parental involvement in all school activities
• promote the advancement of a quality, Catholic education