Alpha Tau chapter was founded at University of New Hampshire in Durham, New Hampshire on June 24, 1924.
Epsilon Pi chapter was founded at Georgia Southwestern State University in Americus, Georgia on February 5, 1972. The chapter closed on December 15, 1987.
Epsilon Psi chapter was founded at University of California, Irvine in Irvine, California on January 29, 1977.
Epsilon Rho chapter was founded at University of Delaware in Newark, Delaware on February 26, 1972. The chapter closed on October 31, 2002.
Epsilon Sigma chapter was founded at University of Central Florida in Orlando, Florida on February 10, 1973. The chapter closed on April 4, 1984.
Epsilon Tau chapter was founded at Virginia Tech in Blacksburg, Virginia on March 31, 1973. The chapter closed on January 1, 1988 and was reopened on November 7, 1998.
Epsilon Theta chapter was founded at California State University, Sacramento in Sacramento, California on May 20, 1967.
Epsilon Upsilon chapter was founded at Mississippi State University in Starkville, Mississippi on April 6, 1974. The chapter closed on March 23, 1984 and was rechartered on April 1, 2021.
Epsilon Xi chapter was founded at University of Nevada, Reno in Reno, Nevada on March 6, 1971. The chapter closed on August 26, 1991.
Epsilon Zeta chapter was founded at Auburn University in Auburn, Alabama on February 4, 1967.
Eta chapter was founded at Bucknell University in Lewisburg, Pennsylvania on June 16, 1898. It was then closed the following year in June 1899. Eta Chapter re-opened on April 1, 1921.
Gamma chapter was founded at Northwestern University in Evanston, Illinois on November 14, 1890.
Gamma Chi chapter was founded at Stetson University in DeLand, Florida on May 18, 1957.
Gamma Delta chapter was founded at University of Denver in Denver, Colorado on October 12, 1946. The chapter closed on October 20, 1987.
Gamma Epsilon chapter was founded at Oklahoma State University in Stillwater, Oklahoma on March 8, 1947.
Gamma Eta chapter was founded at San Jose State University in San Jose, California on March 10, 1948. The chapter closed on May 1, 1974.
Gamma Iota chapter was founded at University of Florida in Gainesville, Florida on April 2, 1949.
Gamma Kappa chapter was founded at Idaho State University in Pocatello, Idaho on February 25, 1950. The chapter closed on November 19, 1984.
Gamma Lambda chapter was founded at Kent State University in Kent, Ohio on April 1, 1950. The chapter closed on January 28, 1973.
Gamma Mu chapter was founded at Ball State University in Muncie, Indiana on June 10, 1950.