Immaculate Heart Middle & High School | 1,466 followers on LinkedIn. We are a private, Catholic, college preparatory school for young women, grades 6-12. Since our founding in 1906 by the Sisters of the Immaculate Heart of Mary, we have been located on the beautiful hillside property in the Los Feliz area of Los Angeles. True to our philosophy and mission, we have long been committed to addressing the uniqueness of each individual and thereby strengthening her belief in herself and in her seemingly unlimited potential.