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 | Alpha - Central Missouri State University - Warrensburg, Missouri - Founded June 28, 1920. |
 | Beta - Truman State University - Kirksville, Missouri - Charter granted July 30, 1921. |
 | Delta - Emporia State University - Emporia, Kansas - Charter granted January 20, 1922. |
 | Epsilon - Pittsburg State University - Pittsburg, Kansas - Charter granted May 3, 1924. |
 | Theta - Northwest Missouri State University - Maryville, Missouri - Charter granted April 2, 1927. |
 | Iota - Kent State University - Kent, Ohio - Charter granted November 12, 1927. Inactive from 1947-1970. Charter reissued January 31, 1971. Inactive from 1987-1991. Charter reissued January 31, 1994. |
 | Mu - Southeastern State University - Durant, Oklahoma - Charter granted January 12, 1929. |
 | Xi - Fairmont State College - Fairmount, West Virginia - Charter granted March 23, 1929. Inactive from 1980-1989. Charter reissued April 9, 1994. |
 | Pi - Indiana University of Pennsylvania - Indiana, Pennsylvania - Charter granted November 8, 1930. Inactive from 1986-1996. Charter reissued April 21, 2001. |
 | Sigma - University of Central Arkansas - Conway, Arkansas - Charter granted November 30, 1934.
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 | Tau - East Central Oklahoma State University - Ada, Oklahoma - Charter granted April 2, 1938. |
 | Upsilon - University of Arkansas at Monticello - Monticello, Arkansas - Charter granted December 17, 1938. |
 | Phi - Southeastern Louisiana University - Hammond, Louisiana - Charter granted May 27, 1939. |
 | Psi - Central Michigan University - Mt. Pleasant, Michigan - Charter granted January 31, 1941. Inactive from 1974-1988. Charter reissued January 20, 1990.
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 | Alpha Delta - Western Illinois University - Macomb, Illinois - Charter granted February 13, 1943. Inactive from 1967-1992. Charter reissued October 28, 1995.
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 | Alpha Epsilon - Henderson State University - Arkadelphia, Arkansas - Charter granted March 23, 1946.
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 | Alpha Kappa - University of Wisconsin-Stout - Menomonie, Wisconsin - Charter granted November 28, 1948.
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 | Alpha Lambda - Concord University - Athens, West Virginia - Charter granted May 7, 1949.
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 | Alpha Phi - Southeast Missouri State University - Cape Girardeau, Missouri - Charter granted December 6, 1952.
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 | Alpha Chi - University of Illinois - Champaign, Illinois - Charter granted May 9, 1953.
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 | Alpha Psi - Pennsylvania State University - State College, Pennsylvania - Charter granted October 12, 1956.
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 | Alpha Omega - University of Missouri at Rolla - Rolla, Missouri - Charter granted November 10, 1956.
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 | Beta Alpha - University of Missouri at Columbia - Columbia, Missouri - Charter granted October 18, 1958. Inactive from 1962-1980. Charter reissued November 7, 1981. Inactive from 1988-1989. Charter reissued November 23, 1991. Charter suspended from 1999-2001.
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 | Beta Gamma - Youngstown State University - Youngstown, Ohio - Charter granted February 7, 1959. Inactive from 1976-2000. Charter reissued April 7, 2001.
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 | Beta Zeta - University of Central Oklahoma - Edmond, Oklahoma - Charter granted May 10, 1959.
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 | Beta Kappa - University of Wisconsin-LaCrosse - LaCrosse, Wisconsin - Charter granted February 28, 1960. Inactive from 1986-1995. Charter reissued April 12, 1997.
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 | Beta Lambda - Valparaiso University - Valporaiso, Indiana - Charter granted February 28, 1960. Inactive from 1968-1970, Charter reissued December 12, 1970.
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 | Beta Pi - Frostburg State University - Frostburg, Maryland - Charter granted May 21, 1960. Inactive from 1971-1983. Charter reissued April 12, 1986. Inactive from 1999-2005. Currently a colony.
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 | Beta Tau - Slippery Rock University - Slippery Rock, Pennsylvania - Charter granted March 11, 1961. Inactive from 1971-1992. Charter reissued April 23, 1993.
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 | Beta Upsilon -Cleveland State University - Cleveland, Ohio - Charter granted December 3,1961.
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 | Beta Phi - Southwestern State University - Weatherford, Oklahoma - Charter granted March 11, 1962. Inactive since 1992. Currently a colony.
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 | Beta Chi - University of Nebraska-Kearney - Kearney, Nebraska - Charter granted May 12, 1962.
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 | Beta Omega - Edinboro University of Pennsylvania - Edinborough, Pennsylvania - Charter granted October 11, 1964.
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 | Gamma Alpha - Mansfield University of Pennsylvania - Mansfield, Pennsylvania - Charter granted February 15, 1965.
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 | Gamma Beta - University of Wisconsin-Stevens Point - Stevens Point, Wisconsin - Charter granted May 15, 1965.
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 | Gamma Delta - Minot State University - Minot, North Dakota - Charter granted May 28, 1966. Inactive since 1988.
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 | Gamma Theta - University of Missouri-St. Louis - St. Louis, Missouri - Charter granted December 14, 1968.
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 | Gamma Nu - University of Wisconsin-River Falls - River Falls, Wisconsin - Charter granted May 17, 1969. Inactive from 1978-1991. Charter reissued May 8, 1992.
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 | Gamma Xi - University of Wisconsin-Platteville - Platteville, Wisconsin - Charter granted May 18, 1969.
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 | Gamma Pi - Stephen F. Austin State University - Nacogdoches, Texas - Charter granted November 14, 1970.
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 | Gamma Tau - Millersville University of Pennsylvania - Millersville, Pennsylvania - Charter granted May 6, 1972.
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 | Gamma Chi - Michigan Technological University - Houghton, Michigan - Charter granted April 20, 1974.
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 | Gamma Psi - Illinois State University - Normal, Illinois - Charter granted October 18, 1975.
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 | Gamma Omega - Baylor University - Waco, Texas - Charter granted March 25, 1977. Inactive since 2007. Currently a colony.
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 | Delta Beta - Duquesne University - Pittsburgh, Pennsylvania - Chartered April 14, 1978.
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 | Delta Epsilon - Texas State University - San Marcos, Texas - Charter granted April 16, 1983.
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 | Delta Nu - Sam Houston State University - Huntsville, Texas - Charter granted November 23, 1985.
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 | Delta Xi - Carnegie-Mellon University - Pittsburgh, Pennsylvania -Charter granted March 14, 1987.
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 | Delta Omicron - Christopher Newport University - Newport News, Virginia - Charter granted May 24, 1987.
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 | Delta Pi - University of Pittsburgh-Johnstown - Johnstown, Pennsylvania - Charter granted March 18, 1988. Inactive 2001-2006. Now a colony.
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 | Delta Rho - Miami University - Oxford, Ohio - Charter granted April 7, 1989.
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 | Delta Tau - Indiana State University - Terre Haute, Indiana - Charter granted April 7, 1990.
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 | Delta Upsilon - Penn State Erie- The Behrend College - Erie, Pennsylvania - Charter granted April 7, 1990.
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 | Delta Phi - Fitchburg State College - Fitchburg, Massachusetts - Charter granted April 25, 1992.
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 | Epsilon Delta - University Of Massachusetts-Lowell - Lowell, Massachusetts - Charter granted April 22, 1995.
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 | Epsilon Zeta - Embry Riddle Aeronautical University - Prescott, Arizona - Charter granted January 27, 1996.
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 | Epsilon Theta - Plymouth State University - Plymouth, New Hampshire - Charter granted May 2, 1998.
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 | Epsilon Kappa - University of Massachusetts-Dartmouth - Dartmouth, Massachusetts - Charter granted April 30, 1999.
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 | Epsilon Lambda - State University of New York at Plattsburgh - Plattsburgh, New York - Chapter granted April 8, 2000.
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 | Epsilon Mu - Marshall University - Huntington, West Virginia - Charter granted March 6, 2004.
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 | Epsilon Xi - Saint Louis University - St. Louis, Missouri - Charter granted April 23, 2005.
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 | Epsilon Omicron - Monmouth University - West Long Branch, New Jersey - Charter granted April 23, 2005.
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 | Epsilon Pi - University of Buffalo - Buffalo, New York - Charter granted April 19, 2008.
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