Epsilon Theta chapter was founded at California State University, Sacramento in Sacramento, California on May 20, 1967.
Alpha Beta chapter was founded at Purdue University in West Lafayette, Indiana on April 26, 1918.
Alpha Chi chapter was founded at Butler University in Indianapolis, Indiana on February 28, 1925.
Alpha Delta chapter was founded at University of Cincinnati in Cincinnati, Ohio on April 25, 1919. The chapter closed on August 10, 2001.
Alpha Epsilon chapter was founded at University of Pennsylvania in Philadelphia, Pennsylvania on May 9, 1919. The chapter closed on June 1, 1969 and was reopened on March 3, 1990. The chapter closed again on May 9, 2016.
Alpha Eta chapter was founded at University of Mount Union in Alliance, Ohio on June 11, 1920.
Alpha Gamma chapter was founded at The University of New Mexico in Albuquerque, New Mexico on June 6, 1918.
Alpha Kappa chapter was founded at University of Oregon in Eugene, Oregon on June 22, 1921.
Alpha Lambda chapter was founded at University of Minnesota in Minneapolis, Minnesota on September 30, 1921.
Alpha Mu chapter was founded at Indiana University in Bloomington, Indiana on April 21, 1922.
Alpha Omicron chapter was founded at The Ohio State University in Columbus, Ohio on September 14, 1923.
Alpha Phi chapter was founded at The University of Texas at Austin in Austin, Texas on September 13, 1924.
Alpha Pi chapter was founded at University of North Dakota in Grand Forks, North Dakota on November 10, 1923. The chapter closed on May 1, 1938 and was reopened on February 17, 1968.
Alpha Tau chapter was founded at University of New Hampshire in Durham, New Hampshire on June 24, 1924.
Alpha Xi chapter was founded at University of Montana in Missoula, Montana on May 11, 1923. The chapter closed on June 1, 1952.
Alpha Zeta chapter was founded at Washington University in St. Louis in St. Louis, Missouri on June 8, 1920. The chapter closed on June 5, 1975 and was reopened on October 26, 1985. The chapter closed again on November 1, 1994.
Beta chapter was founded at Albion College in Albion, Michigan on May 27, 1887.
Beta Chi chapter was founded at Willamette University in Salem, Oregon on June 10, 1944.
Beta Epsilon chapter was founded at Michigan State University in East Lansing, Michigan on February 11, 1928.
Beta Eta chapter was founded at Florida State University in Tallahassee, Florida on March 29, 1929.
