Saint Thomas Aquinas Academy is proud to be part of the rich Catholic teaching tradition that has been in northeast Wisconsin since 1876.  We have the privilege of making faith the cornerstone of all we offer to our students and families.

The Pre-K through 6th grade Elementary campus is located in Peshtigo at St. Mary Parish.  The Middle and High school campus is located in Marinette.  Our caring and dedicated faculty work to meet each students needs in a safe and encouraging environment.  Each day begins with prayer and all students attend and participate in Mass weekly.  Our students benefit from a low student to teacher ration and highly individualized attention in the classroom at all levels.  Strong academics, fine arts, extracurricular and service activities, and athletics combine to give students opportunities to reach their highest potential.  We welcome students from all backgrounds at the Academy.  We invite you to discover the difference that the gift of faith makes in education!


Our Mission
The mission of Saint Thomas Aquinas Academy is to provide an affordable education in the Catholic teaching tradition that inspires in students a life long thirst for knowledge, wisdom, and truth; a desire to reach the full potential which God has intended for them; and a recognition of the discipline of the mind and heart required for effective service to others in the love of God.

Our Vision

The members of Saint Thomas Aquinas Academy will build the Kingdom of God through the formational and educational religious development of the young and youth who are enrolled in academic programs of education. We will work to proclaim the message, create community, provide service, and develop a prayerful life through worship.



Saint Thomas Aquinas Academy holds accreditation from the
Wisconsin Religious and Independent Schools Association.