Active Chapters

Α Alpha University of Southern California Los Angeles, California April 11, 1924
Δ Delta University of Illinois Champaign-Urbana, Illinois January 25, 1928
Ε Epsilon Colony North Dakota State University
(formerly North Dakota Agricultural College)		 Fargo, North Dakota May 21, 1928
Η Eta Marquette University Milwaukee, Wisconsin May 23, 1931
Θ Theta University of British Columbia Vancouver, British Columbia April 24, 1932
Κ Kappa Trine University
(formerly Tri-State College)		 Angola, Indiana May 25, 1947
Ψ Psi University of Delaware Newark, Delaware April 11, 1999
Β-Γ Beta-Gamma Lamar University Beaumont, Texas May 17, 2003
Β-Δ Beta-Delta Virginia Polytechnic Institute and State University Blacksburg, Virginia December 3, 2005
Β-Ε Beta-Epsilon University of British Columbia at Okanagan Kelowna, British Columbia March 28, 2009
Β-Ι Beta-Iota University of Maryland College Park, Maryland June 23, 2012
Β-Κ Beta-Kappa Lehigh University Bethlehem, Pennsylvania March 23, 2013
Β-Λ Beta-Lambda San Diego State University San Diego, California April 20, 2013
Β-Μ Beta-Mu Milwaukee School of Engineering Milwaukee, Wisconsin October 19, 2013
Β-Ν Beta-Nu California Polytechnic State University San Luis Obispo, California April 19, 2014
Β-Ξ Beta-Xi West Virginia University Morgantown, West Virginia December 6, 2014
Β-Ο Beta-Omicron University of Missouri Columbia, Missouri December 13, 2014
Β-Σ Beta-Sigma Colony Howard University Washington, DC May 18, 2018
Cornell University Colony Cornell University Ithaca, New York

Alumni Chapters

Los Angeles Alumni losangelesalumni@sigmaphidelta.org July 15, 1926
Delta Alumni deltaalumni@sigmaphidelta.org May 16, 1930
Vancouver Alumni vancouveralumni@sigmaphidelta.org February 12, 1948
Kappa Alumni kappaalumni@sigmaphidelta.org November 3, 1952
Fargo Alumni fargoalumni@sigmaphidelta.org July 22, 1953
Eta Alumni etaalumni@sigmaphidelta.org September 1, 2004
Omega Alumni omegaalumni@sigmaphidelta.org May 22, 2011
Psi Alumni psialumni@sigmaphidelta.org May 7, 2012
Beta-Delta Alumni beta-deltaalumni@sigmaphidelta.org December 10, 2012
Beta-Nu Alumni beta-nualumni@sigmaphidelta.org April 29, 2018
Beta-Mu Alumni beta-mualumni@sigmaphidelta.org June 8, 2018
Beta-Kappa Alumni beta-kappaalumni@sigmaphidelta.org November 17, 2019
Beta-Omicron Alumni beta-omicronalumni@sigmaphidelta.org November 17, 2019
Phi Alumni phialumni@sigmaphidelta.org January 12, 2020
Beta-Pi Alumni beta-pialumni@sigmaphidelta.org January 12, 2020
Beta-Eta Alumni beta-etaalumni@sigmaphidelta.org August 21, 2022
Beta-Gamma Alumni beta-gammaalumni@sigmaphidelta.org April 20, 2024