Immaculata High School (also known as Immaculata or IHS) is a private, coeducational, Roman Catholic high school in Somerville, in Somerset County, New Jersey, United States. Founded in 1962, Immaculata High School operates within the Roman Catholic Diocese of Metuchen. The School is also served by a group of Sisters, Servants of the Immaculate Heart of Mary, who live in a convent attached to the main building of the school. Many of the Sisters teach different subjects in the school's curriculum. Immaculata High School has been accredited by the Middle States Association of Colleges and Schools Commission on Secondary Schools since 1978.