41, plus one (Marist) which is no longer affiliated with the Catholic Church.
(Boston College, Canisius, Creighton, Dayton, DePaul, Detroit Mercy, Duquesne, Fairfield, Fordham, Georgetown, Gonzaga, Holy Cross, Iona, La Salle, Loyola Chicago, Loyola Maryland, Loyola Marymount, Notre Dame, Manhattan, Marquette, Mount St. Mary's, Niagara, Portland, Providence, Sacred Heart, San Diego, San Francisco, Santa Clara, Seattle, Seton Hall, Siena, St Bonaventure, St Francis (NY), St Francis (PA), St John's, St Joseph's, St Louis, St Mary's, St Peter's, Xavier, Villanova)
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