St. Apollinaris Catholic School's mission is to provide a Christ centered, faith-filled community where the whole child develops as an active Catholic, a life-long learner, an effective communicator, and a responsible, ethical and caring citizen in society.
Established in 1959, St. A's is located in Napa, California, Diocese of Santa Rosa. The school was staffed and run under the leadership of the Sisters of Mercy of Loughrea, County Galway, Ireland from 1959 to 1991. The school serves over 300 children from the Napa area. The Sisters of Mercy tradition that began 44 years ago continues to provide students with an outstanding Catholic education within a supportive, caring school community.