# Cantwell Sacred Heart of Mary

> Private school · Montebello. A private Catholic high school for grades 9 through 12 in Montebello, with about 350 students.
- Ages: 14+
- Price: ask the provider
- Address: 329 N Garfield Ave, Montebello, CA 90640
- Website: http://www.cshm.org
- Phone: (323) 887-2066
- On Summerground: https://summerground.com/montebello/cantwell-sacred-heart-of-mary

## Cantwell Sacred Heart of Mary (9–12)

Ages 14+

Cantwell Sacred Heart of Mary is a private Catholic high school at 329 North Garfield Avenue in Montebello, serving grades 9 through 12, or roughly ages 14 to 18. The federal Private School Universe Survey for 2023-24 counted 352 students and about 17.5 teachers, a student-teacher ratio of about 20 to 1. Its religious affiliation is Catholic, so faith is part of the school’s identity and community. The school takes teenagers only, so it suits a family looking for a Catholic high school rather than a younger child’s school. The school’s website is cshm.org.

## About Cantwell Sacred Heart of Mary

Cantwell Sacred Heart of Mary is a private Catholic high school in Montebello for grades 9 through 12. The federal Private School Universe Survey for 2023-24 counted 352 students and about 17.5 teachers, and the school’s website is cshm.org.

Details from http://www.cshm.org, checked October 9, 2026. Confirm prices and dates with the provider before signing up.