About Cantwell-Sacred Heart of Mary High School
Cantwell-Sacred Heart of Mary High School (CSHM) is a co-educational Catholic high school in Montebello, owned and operated by the Archdiocese of Los Angeles. It was formed in 1991 by consolidating Sacred Heart of Mary High School (all-girls, 1942, RSHM) and Cantwell High School (all-boys, 1946, Irish Christian Brothers).
Quick facts
- Sacred Heart of Mary (girls) founded 1942 by the RSHM
- Cantwell (boys) founded 1946; named for Archbishop John J. Cantwell
- Consolidated co-ed in 1991
- Montebello; Archdiocese of Los Angeles
A Catholic education in Los Angeles
Families choosing Cantwell-Sacred Heart of Mary 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 Los Angeles. For tuition, admissions, the calendar, and how to apply, visit the official website.
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