| Chapter | Charter Date | Institution | Location | Region | Status | References |
|---|
| Alpha | November 25, 1987 | Texas Tech University | Lubbock, Texas | Central Plains | Active | |
| Beta | April 5, 1989 | University of Texas at El Paso | El Paso, Texas | Southwest | Active | |
| Gamma | September 28, 1990 | University of Arizona | Tucson, Arizona | Southwest | Active | |
| Delta | November 23, 1991 | Texas A&M University | College Station, Texas | East Texas | Active | |
| Epsilon | September 22, 1992 | Arizona State University | Tempe, Arizona | Southwest | Active | |
| Zeta | April 23, 1995 – 20xx ? | Eastern New Mexico University | Portales, New Mexico | Southwest | Inactive | |
| Eta | September 22, 1992 – 1995; April 4, 1998 – January 24, 2006; December 12, 2008 | Sam Houston State University | Huntsville, Texas | East Texas | Active | [6] |
| Theta | April 3, 1993 | West Texas A&M University | Canyon, Texas | Central Plains | Active | |
| Iota | November 19, 1994 | Northern Arizona University | Flagstaff, Arizona | Southwest | Active | |
| Kappa | August 27, 1993 – 202x ? | New Mexico State University | Las Cruces, New Mexico | Southwest | Inactive | |
| Lambda | April 20, 1996 | University of Washington | Seattle, Washington | Pacific Northwest | Active | |
| Mu | April 19, 1997 | Midwestern State University | Wichita Falls, Texas | Central Plains | Active | |
| Nu | 1998 – 20xx ? | Western New Mexico University | Silver City, New Mexico | Southwest | Inactive | |
| Xi | November 23, 1996 | University of Oklahoma | Norman, Oklahoma | Central Plains | Active | |
| Omicron | April 19, 1997 | University of Wisconsin–Parkside | Kenosha, Wisconsin | Midwest | Active | |
| Pi | November 19, 1997 | University of Houston | Houston, Texas | East Texas | Active | |
| Rho | November 22, 1997 | Texas State University | San Marcos, Texas | Central Texas | Active | |
| Sigma | April 28, 1997 – 20xx ?; 2023 | Southern Methodist University | Dallas, Texas | North Texas | Active | |
| Tau | March 10, 1997 | University of Texas at Arlington | Arlington, Texas | North Texas | Active | |
| Upsilon | November 22, 1997 | Washington State University | Pullman, Washington | Pacific Northwest | Active | |
| Phi | 1998 – 20xx ? | Instituto Tecnológico Autónomo de México | Mexico City, Mexico | | Inactive | |
| Chi | June 26, 1998 | University of Texas at Austin | Austin, Texas | Central Texas | Active | |
| Psi | 1998 – 202x ? | Rutgers University | New Brunswick, New Jersey | Northeast | Inactive | |
| Omega | | | | | Memorial | |
| Alpha Alpha | November 25, 1997 | Northwestern University | Evanston, Illinois | Midwest | Active | |
| Alpha Beta | April 5, 1998 | Michigan State University | Lansing, Michigan | Midwest | Active | |
| Alpha Gamma | February 6, 1999 | University of Texas–Rio Grande Valley | Edinburg, Texas | Central Texas | Active | |
| Alpha Delta | February 26, 1999 | University of Texas–San Antonio | San Antonio, Texas | Central Texas | Active | |
| Alpha Epsilon | 1998 – 201x ? | Tarleton State University | Waco, Texas | North Texas | Inactive | |
| Alpha Zeta | November 21, 1998 – 202x ? | University of Wisconsin–Milwaukee | Milwaukee, Wisconsin | Midwest | Inactive | |
| Alpha Eta | February 22, 1999 | University of New Mexico | Albuquerque, New Mexico | Southwest | Active | |
| Alpha Theta | November 6, 1999 | Oregon State University | Corvallis, Oregon | Pacific Northwest | Active | |
| Alpha Iota | June 22, 1999 | East Texas A&M University | Commerce, Texas | North Texas | Active | [a] |
| Alpha Kappa | May 17, 2003 | California State University, Monterey Bay | Seaside, California | Pacific Northwest | Active | |
| Alpha Lambda | April 28, 2001 | Stephen F. Austin State University | Nacogdoches, Texas | East Texas | Active | |
| Alpha Mu | July 3, 2002 | Texas A&M University–Kingsville | Kingsville, Texas | Central Texas | Active | |
| Alpha Nu | January 26, 2003 | University of the Pacific | Stockton, California | Pacific Northwest | Active | |
| Alpha Xi | November 22, 2003 | Baylor University | Waco, Texas | Central Texas | Active | |
| Alpha Omicron | April 7, 2005 | University of Texas at Dallas | Richardson, Texas | North Texas | Active | |
| Alpha Pi | February 12, 2005 – 202x ? | St. Mary's University | San Antonio, Texas | Central Texas | Inactive | |
| Alpha Rho | December 10, 2006 | Texas Southern University | Houston, Texas | East Texas | Active | |
| Alpha Sigma | May 14, 2005 | University of Illinois at Urbana–Champaign | Urbana, Illinois | Midwest | Active | |
| Alpha Tau | December 3, 2006 | Texas A&M International University | Laredo, Texas | Central Texas | Active | |
| Alpha Upsilon | December 6, 2008 – 2020 | University of Florida | Gainesville, Florida | East Texas | Inactive | |
| Alpha Phi | May 6, 2006 | University of Nevada, Las Vegas | Paradise, Nevada | Southwest | Active | |
| Alpha Chi | November 15, 2008 | University of North Texas | Denton, Texas | North Texas | Active | |
| Alpha Psi | October 30, 2009 | University of California, Merced | Merced, California | Pacific Northwest | Active | |
| Alpha Omega | May 27, 2006 | University of Wisconsin–Oshkosh | Oshkosh, Wisconsin | Midwest | Active | |
| Beta Alpha | April 16, 2010 | Northeastern Illinois University | Chicago, Illinois | Midwest | Active | |
| Beta Beta | December 12, 2010 | California State University, Dominguez Hills | Carson, California | Southwest | Active | |
| Beta Gamma | April 4, 2009 | Eastern Washington University | Cheney, Washington | Pacific Northwest | Active | |
| Beta Delta | November 5, 2011 | University of Nevada, Reno | Reno, Nevada | Pacific Northwest | Active | |
| Beta Epsilon | December 7, 2011 | Texas Christian University | Fort Worth, Texas | North Texas | Active | |
| Beta Zeta | April 27, 2012 | University of Utah | Salt Lake City, Utah | Southwest | Active | |
| Beta Eta | April 30, 2011 | University of Central Oklahoma | Edmond, Oklahoma | Central Plains | Active | |
| Beta Theta | December 2, 2012 | Texas A&M University–San Antonio | San Antonio, Texas | Central Texas | Active | |
| Beta Iota | April 14, 2011 | University of Illinois at Chicago | Chicago, Illinois | Midwest | Active | |
| Beta Kappa | November 30, 2012 | Western Oregon University | Monmouth, Oregon | Pacific Northwest | Active | |
| Beta Lambda | 2012 | University of Idaho | Moscow, Idaho | Pacific Northwest | Active | [b] |
| Beta Mu | 2016 | Our Lady of the Lake University | San Antonio, Texas | Central Texas | Inactive | [c] |
| Beta Nu | 2016 | Oklahoma State University | Stillwater, Oklahoma | Central Plains | Active | [d] |
| Beta Xi | 2016 | Heritage University | Toppenish, Washington | Pacific Northwest | Inactive | [e] |
| Beta Omicron | April 13, 2015 | University of the Incarnate Word | San Antonio, Texas | Central Texas | Active | [f] |
| Beta Pi | October 31, 2012 | Texas A&M University–Corpus Christi | Corpus Christi, Texas | Central Texas | Active | |
| Beta Rho | November 14, 2014 | Western Michigan University | Kalamazoo, Michigan | Midwest | Active | |
| Beta Sigma | January 14, 2014 | University of Houston–Downtown | Houston, Texas | East Texas | Active | |
| Beta Tau | June 6, 2013 | Portland State University | Portland, Oregon | Pacific Northwest | Active | |
| Beta Upsilon | May 5, 2008 | Southern Illinois University Carbondale | Carbondale, Illinois | Midwest | Active | |
| Beta Phi | December 13, 2015 | California State University Fresno | Fresno, California | Southwest | Active | |
| Beta Chi | April 22, 2018 | Kansas State University | Manhattan, Kansas | Central Plain | Active | |
| Beta Psi | July 16, 2022 | Kennesaw State University | Kennesaw, Georgia | East Texas | Active | |
| Beta Omega | November 11, 2019 | University of Nebraska–Lincoln | Lincoln, Nebraska | Central Plains | Active | |
| | Colorado State University | Fort Collins, Colorado | Southwest | Colony | [g] |
| | Prairie View A&M University | Prairie View, Texas | East Texas | Colony | [h] |
| | California State University - Bakersfield | Bakersfield, California | Southwest | Colony | [i] |
| | Colorado State University–Pueblo | Pueblo, Colorado | Southwest | Colony | [j] |