There are 197 US members of ACCU (Association of Catholic Colleges and Universities), as of 2014. They make up a significant number within the whole amount of Catholic universities and colleges in the world.
Association of Benedictine Colleges and Universities
Conference for Mercy Higher Education
Association of Colleges of Sisters of Saint Joseph
Association of Marianist Universities
Delta Epsilon Sigma is the official national scholastic honor society for students, faculty, and alumni of colleges and universities with a Catholic tradition.
Schools that have ended or renounced their affiliation with the Church: