Cotter Schools, located in Winona, Minnesota, USA, is comprised of Main Square Montesorri, Cotter Elementary Schools (St. Mary's & St. Stan's Campuses) Cotter Junior High, and Cotter High School (St. Teresa's Campus). We serve motivated and engaged students from age 16 months through 12. Over 1,000 students from the city of Winona, the towns surrounding Winona, and from over 15 countries around the world engage in rigorous academic study, faith-centered experiences, and personally enriching athletic and arts activities - all with one goal in mind: that each student discovers and develop their fullest potential!