September 13, 1954, was a banner day for what is now called the Inland Empire in Southern California. On that day Fr. Maher's dream was realized as school opened to greet 145 eager students, three St. Francis Sisters, and lay teachers at  the new Catholic School located in Chino, California. 

St. Margaret Mary Catholic School continues to serve students at the same location with an ever increasing enrollment. We now serve such communities as Los Angeles to the West and Riverside to the East.

Thousands of students have been educated at SMMS, receiving an educational foundation that have enabled then to become honest, productive citizens of our communities. Over the years, many of our graduates have returned and joined our staff as teachers or clerical staff.

St. Margaret Mary Catholic School offers preschool, grades K through 8 with students participating in our Computer Lab, Science Lab, Fine Arts Lab, and  as well as a competitive athletic program.

A preschool program (ages 3-5), Extended Care (K-8), extra curricular activities, and a hot lunch program are provided. 

SMMS is fully accredited by the Western Association of Schools and Colleges and by the Western Catholic Education Association. We are a parish school under the auspices of the Roman Catholic Diocese of San Bernardino.

Non-Discrimination Policy

St. Margaret Mary Catholic School admits students of any race, color and national or ethnic origin, and does not discriminate on the basis of sex in its admission policies and employment practices.