Which ones haven’t fallen?
Maybe 10 or 20 nationwide would be what you would expect if you had a strong religious upbringing. Many of these are newer, and not founded by religious orders. Some are a bit kooky or tradish. Obviously any Jesuit, Dominican, etc, colleges are secularized. It’s often the name, background, reputation and charming campuses that keep these going. Someone wrote a book on colleges that are authentically Catholic.
Southern Baptists, Missouri and Wisconsin Synods of the Lutheran Church.