All parents with students enrolled in Holy Trinity are automatically members of HTSA, along with the faculty and staff of the school. The primary purpose of HTSA is to promote positive growth and development of the School through planned community building and fund-raising activities. Monies collected from fundraisers are budgeted to various needs and activities within the School.
Meetings are held throughout the year in the evening. Parents are encouraged to volunteer their services and participate in various activities.