Delta Rho chapter was founded at University of Arkansas in Fayetteville, Arkansas on December 2, 1961. The chapter closed on May 31, 1977 and was reopened on November 10, 2012.
Delta Sigma chapter was founded at University of the Pacific in Stockton, California on March 10, 1962. The chapter closed on January 16, 1996.
Delta Tau chapter was founded at Minnesota State University, Mankato in Mankato, Minnesota on April 3, 1965.
Delta Theta chapter was founded at University of Maine in Orono, Maine on April 25, 1959. The chapter closed on October 19, 1988.
Delta Upsilon chapter was founded at Colorado State University in Fort Collins, Colorado on October 16, 1965. The chapter closed on October 13, 1998.
Delta Xi chapter was founded at Denison University in Granville, Ohio on April 29, 1961. The chapter closed on June 1, 1969 and was reopened on April 12, 1986. The chapter closed again on October 12, 2008.
Delta Zeta chapter was founded at Central Michigan University in Mount Pleasant, Michigan on November 8, 1958.
Epsilon chapter was founded at University of Southern California in Los Angeles, California on June 16, 1895.
Epsilon Chi chapter was founded at University of North Carolina at Chapel Hill in Chapel Hill, North Carolina on January 22, 1977.
Epsilon Eta chapter was founded at Stephen F. Austin State University in Nacogdoches, Texas on May 6, 1967.
Epsilon Iota chapter was founded at University of Northern Iowa in Cedar Falls, Iowa on March 2, 1968. The chapter closed on October 16, 1987.
Epsilon Kappa chapter was founded at California State University, Fullerton in Fullerton, California on December 7, 1968.
Epsilon Lambda chapter was founded at The University of Texas at Arlington in Arlington, Texas on February 15, 1969.
Epsilon Mu chapter was founded at Northern Illinois University in DeKalb, Illinois on February 28, 1970. The chapter closed on May 1, 1974.
Epsilon Nu chapter was founded at Boise State University in Boise, Idaho on March 7, 1970.
Epsilon Omega chapter was founded at Cal Poly, San Luis Obispo in San Luis Obispo, California on April 15, 1978.
Epsilon Omicron chapter was founded at Indiana State University in Terre Haute, Indiana on March 20, 1971.
Epsilon Phi chapter was founded at Georgia Institute of Technology in Atlanta, Georgia on February 22, 1975.
Kappa Sigma chapter was founded at The University of Southern Mississippi in Hattiesburg, Mississippi on November 15, 2014.
Kappa Tau chapter was founded at University of Connecticut in Storrs Mansfield, Connecticut on November 15, 2014.
