The following is an incomplete list of former members of the U.S. college athletic league now known as the Middle Atlantic Conferences (MAC). This includes schools that were members under the MAC's previous identity as the Middle Atlantic States Collegiate Athletics Conference.
One school which had departed the conference has since re-joined: Stevens Institute of Technology, which competed in the MAC from 1922–23 to 1977–78, returned back since the 2019–20 school year, joining the MAC's Freedom Conference.
List of former members Before the formation of the multiple leagues Institution Location Founded Affiliation Enrollment Nickname Joined Left Currentconference American University Washington, D.C. 1893 Private 12,442 Eagles 1965 1974 Patriot Bucknell University Lewisburg, Pennsylvania 1846 Private 3,655 Bison 1922 1974 Patriot Columbia University Manhattan, New York City 1754 Private 27,606 Lions 1938? 1954 Ivy Newark, Delaware 1743 Private,Public 19,391 Fightin' Blue Hens 1922 1974 Conf. USA (CUSA) Dickinson College Carlisle, Pennsylvania 1773 Private 2,300 Red Devils 1924? 1992 Centennial Drexel University Philadelphia, Pennsylvania 1891 Private 25,500 Dragons 1922 1974 Coastal (CAA) Franklin & Marshall College Lancaster, Pennsylvania 1787 Private 2,324 Diplomats 1922 1992 Centennial Gettysburg College Gettysburg, Pennsylvania 1832 Private 2,600 Bullets 1922 1992 Centennial Haverford College Haverford, Pennsylvania 1833 Private 1,190 Fords 1922 1992 Centennial Hofstra University Hempstead, New York 1935 Private 12,400 Pride 1951 1974 Coastal (CAA) Johns Hopkins University Baltimore, Maryland 1876 Private 5,326 Blue Jays 1945 1992 Centennial La Salle University Philadelphia, Pennsylvania 1863 Private 7,554 Explorers 1951 1974 Atlantic 10 (A-10) Lafayette College Easton, Pennsylvania 1826 Private 2,382 Leopards 1938? 1974 Patriot Lehigh University Bethlehem, Pennsylvania 1865 Private 7,070 Mountain Hawks 1938? 1974 Patriot Muhlenberg College Allentown, Pennsylvania 1848 Private 2,225 Mules 1922 1992 Centennial New York University Lower Manhattan, New York City 1831 Private 38,391 Violets 1922 1955 University (UAA) Philadelphia, Pennsylvania 1740 Private 21,329 Quakers 1938? 1954 Ivy Princeton University Princeton, New Jersey 1746 Private 7,567 Tigers 1922 1954 Ivy Rider University Lawrenceville, New Jersey 1865 Private 5,790 Broncs 1965 1974 Metro Atlantic (MAAC) Rutgers University–New Brunswick New Brunswick, New Jersey 1766 Public 58,788 Scarlet Knights 1922 1962 Big Ten (B1G) Saint Joseph's University Wynnfield, Pennsylvania 1851 Private 8,800 Hawks 1949 1974 Atlantic 10 (A-10) Seton Hall University South Orange, New Jersey 1856 Private 9,745 Pirates 1938? 1956 Big East Swarthmore College Swarthmore, Pennsylvania 1864 Private 1,545 Garnet 1922 1992 Centennial Temple University Philadelphia, Pennsylvania 1884 Public 38,648 Owls 1938? 1962 The American Upsala College East Orange, New Jersey 1893 Private 435 Vikings 1960 1995 N/A Ursinus College Collegeville, Pennsylvania 1869 Private 1,650 Bears 1938? 1992 Centennial Wagner College Staten Island, New York City 1883 Private 2,400 Seahawks 1938? 1975 Northeast (NEC) Washington College Chestertown, Maryland 1723 Private 1,450 Shoremen (men's)Shorewomen (women's) 1946 1992 Centennial West Chester University of Pennsylvania West Chester, Pennsylvania 1871 Public 14,950 Golden Rams 1938?;1969 1951;1974 Pennsylvania (PSAC)
Notes
Since the formation of the multiple leagues Institution Location Founded Affiliation Enrollment Nickname Joined Left Currentconference Drew University Madison, New Jersey 1867 Private 2,369 Rangers 1968 2007 Landmark Elizabethtown College Elizabethtown, Pennsylvania 1899 Private 2,082 Blue Jays 1928 2014 Landmark Juniata College Huntingdon, Pennsylvania 1876 Private 1,619 Eagles 1938? 2007 Landmark Lycoming College Williamsport, Pennsylvania 1812 Private 1,272 Warriors 1952 2023 Landmark Manhattanville College Purchase, New York 1841 Private 2,700 Valiants 2007 2019 Skyline Moravian College Bethlehem, Pennsylvania 1742 Private 1,564 Greyhounds 1945 2007 Landmark Scranton, Pennsylvania 1888 Private 6,034 Royals 1938 2007 Landmark Susquehanna University Selinsgrove, Pennsylvania 1858 Private 2,200 Crusaders 1922 2007 Landmark Wilkes University Wilkes-Barre, Pennsylvania 1933 Private 5,552 Colonels 1946 2023 Landmark
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