Marian Catholic High School 700 Ashland Avenue Chicago Heights, (708) 755-7565 http://www.marianchs.com/ Facebook Twitter Instagram PinterestGrades: 9-12Gender: Co-EdAffiliation: CatholicRatio/Accreditation: 13:1, IHSA, Cognia, ISBE, NCEA, ICOPS, DASS, NASSP