About Trinity High School
Trinity High School is a Roman Catholic, college-preparatory high school for girls in River Forest, Illinois, in the Archdiocese of Chicago. It was founded in 1918 by the Sinsinawa Dominican Sisters and continues in that tradition, challenging young women to seek faith, knowledge, and truth. The school offers both college-preparatory and International Baccalaureate curricula.
Quick facts
- Founded 1918
- Grades 9–12, Private Catholic
- Sinsinawa Dominicans
- River Forest
A Catholic education in Chicago
Families choosing Trinity High School are choosing more than academics — a Catholic school offers faith formation, the sacraments, service, and a close community. For Mass times, the nearest parish, and other Catholic schools in the area, use the free Catholic Connect map or browse all Catholic schools in Chicago. For tuition, admissions, the calendar, and how to apply, visit the official website.
Find your parish and community in Chicago
Join Catholic Connect free — find Catholic schools, parishes, and people near you.
Join Catholic Connect free