Archbishop Stepinac High School 950 Mamaroneck Ave, White Plains, NY10605 Founded more than 60 years ago, Stepinac is a Roman Catholic preparatory school for young men. Its mission is to offer…More "a highly competitive academic and extracurricular program" that will prepare its students for college and leadership roles. Ninety-eight percent of its graduates attend college. The school is conveniently located near downtown White Plains. See the Web site for more information.