About Mullen High School
Mullen is a private Lasallian Catholic, college-preparatory school in southwest Denver conducted in the tradition of St. John Baptist de La Salle. Its core values are inclusive community, faith in the presence of God, quality education, and respect for all persons. The school remains affiliated with the Brothers of the Christian Schools.
Quick facts
- Founded 1931
- Grades 9–12, Private Catholic
- De La Salle Christian Brothers (Lasallian)
- Denver
- Enrollment: Approximately 750 students
A Catholic education in Denver
Families choosing Mullen 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 Denver. For tuition, admissions, the calendar, and how to apply, visit the official website.
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