Iona University (/ aɪˈoʊnə /) is a private Catholic university with a main campus in New Rochelle, New York, United States. It was founded in by the Congregation of Christian Brothers and occupies a campus of 45 acres ( km 2) in New Rochelle and a campus of 28 acres ( km 2) in Bronxville, New York. Iona University offers more than 60 undergraduate programs and 45 graduate.