Saint Monica Preparatory is a parochial, co-educational Catholic school in Santa Monica, California, consisting of students in grades Transitional kindergarten to grade 12. It is located in the Archdiocese of Los Angeles and serves the parish of St. Monica Catholic Church. 
The school in its current organizational structure was formed by the merging of the parish elementary and high schools into a single TK–12 school, but the elementary and high schools remain on their respective separate campuses.
Background.
Saint Monica was established in 1899 by the Sisters of the Holy Names of Jesus and Mary.
The academy housed both an elementary school and a high school until 1930, when the elementary school became the "Saint Monica Parish Elementary School" and was transferred to its present site on Seventh Street. The school was sold in 1935, and Saint Monica High School was opened in 1939. The women's high school and the men's high schools were operated separately until the fall of 1968, when classroom instruction became co-educational.
The elementary and high schools had long been affiliated with one another as parish schools serving the St. Monica Catholic Church but were administered separately. In the spring of 2022, the school board announced that the two schools would merge into one legal entity under a single administration beginning in the 2022–23 academic year. The TK-12 school would be rebranded as Saint Monica Preparatory.
References.
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