Full-Fledged Chapters

 A Berkeley, CA Spring 1990

 Β University of California, Davis Spring 1990

 Γ University of California, San Diego Winter 1992

 Δ University of California, Santa Cruz Spring 1992

 Ε Riverside, CA Summer 1992

 Ζ Stanford University Spring 1993

 Η University of Texas, Austin Fall 1993

 Θ University of Pennsylvania Fall 1994

 Ι University of Houston Fall 1994

 Κ University of California, Irvine Fall 1994

 Λ University of Michigan, Ann Arbor Winter 1996

 Μ California State University, Sacramento Spring 1996

 Ν Pennsylvania State University Fall 1994

 Ξ San Jose State University Spring 1995

 Ο California Polytechnic State University, San Luis Obispo Spring 1996

 Π University of Washington Spring 1998

 Ρ State University of New York, Buffalo Spring 1997

 Σ University of Virginia Fall 1999

 T Cornell University Spring 1997

 Υ University of Illinois, Urbana Champaign Spring 2000

 Χ University of Oklahoma Spring 2005

 Ψ Rutgers University Spring 2000

 AA University of South Florida Spring 2006

 AΒ Duke University Spring 2006

Associate Chapters

  Boston University Spring 1996

  The Johns Hopkins University Winter 1998

  Baylor University Fall 1997

  University of Illinois, Chicago Fall 1998

  State University of New York, Stony Brook Winter 1999

  University of California, Santa Barbara Spring 2001

  University of North Carolina, Chapel Hill Spring 1996

  State University of New York, Binghamton Spring 2003

  The City University of New York, Baruch College Fall 2009

  Michigan State University Fall 1998

  Virginia Commonwealth University Spring 2006

  University of Florida Fall 2008

  Virginia Polytechnic Institute and State University Spring 2002

  James Madison University Spring 2003

  University of Wisconsin, Madison Spring 2008

  The Florida State University Spring 2001

Colonies

  University of Maryland, College Park Fall 2002

  Purdue University at West Lafayette Fall 2003

  Carnegie Mellon University Fall 2003

  University of Maryland, Baltimore County Fall 2005

  University of Toronto Winter 2010

  University of Chicago Fall 2010

  New York University Spring 1999

  St. John's University Spring 2013

  University of Texas, Arlington Spring 2015

  California State University San Marcos Spring 2015