| Chapter | Charter date and range | Institution | Location | State or district | Status | References |
| Pennsylvania Alpha | June 15, 1885 | Lehigh University | Bethlehem | Pennsylvania | Active | [6] |
| Michigan Alpha | November 5, 1892 | Michigan State University | East Lansing | Michigan | Active | |
| Indiana Alpha | April 10, 1893 | Purdue University | West Lafayette | Indiana | Active | |
| New Jersey Alpha | March 27, 1896 | Stevens Institute of Technology | Hoboken | New Jersey | Active | |
| Illinois Alpha | June 2, 1897 | University of Illinois at Urbana-Champaign | Urbana | Illinois | Active | |
| Wisconsin Alpha | May 5, 1899 | University of Wisconsin–Madison | Madison | Wisconsin | Active | |
| Ohio Alpha | May 19, 1900 | Case Western Reserve University | Cleveland | Ohio | Active | |
| Kentucky Alpha | April 5, 1902 | University of Kentucky | Lexington | Kentucky | Active | |
| New York Alpha | April 11, 1902 | Columbia University | New York City | New York | Active | |
| Missouri Alpha | November 15, 1902 | University of Missouri | Columbia | Missouri | Active | |
| Michigan Beta | August 6, 1904 | Michigan Technological University | Houghton | Michigan | Active | |
| Colorado Alpha | May 5, 1905 | Colorado School of Mines | Golden | Colorado | Active | |
| Colorado Beta | June 8, 1905 | University of Colorado at Boulder | Boulder | Colorado | Active | |
| Illinois Beta | April 6, 1906 | Illinois Institute of Technology | Chicago | Illinois | Active | |
| New York Beta | May 16, 1906 | Syracuse University | Syracuse | New York | Active | |
| Michigan Gamma | June 14, 1906 | University of Michigan | Ann Arbor | Michigan | Active | |
| Missouri Beta | December 21, 1906 | Missouri University of Science and Technology | Rolla | Missouri | Active | |
| California Alpha | April 10, 1907 | University of California, Berkeley | Berkeley | California | Active | |
| Iowa Alpha | December 20, 1907 | Iowa State University | Ames | Iowa | Active | |
| New York Gamma | June 12, 1908 – 1916; 1936 | Rensselaer Polytechnic Institute | Troy | New York | Active | [a] |
| Iowa Beta | March 30, 1909 | University of Iowa | Iowa City | Iowa | Active | |
| Minnesota Alpha | June 9, 1909 | University of Minnesota Twin Cities | Minneapolis | Minnesota | Active | |
| New York Delta | January 17, 1910 | Cornell University | Ithaca | New York | Active | |
| Massachusetts Alpha | May 14, 1910 | Worcester Polytechnic Institute | Worcester | Massachusetts | Active | |
| Maine Alpha | 1911 | University of Maine | Orono | Maine | Active | |
| Pennsylvania Beta | May 4, 1912 | Pennsylvania State University | State College | Pennsylvania | Active | |
| Washington Alpha | June 4, 1912 | University of Washington | Seattle | Washington | Active | |
| Arkansas Alpha | December 14, 1914 | University of Arkansas | Fayetteville | Arkansas | Active | |
| Kansas Alpha | December 17, 1914 | University of Kansas | Lawrence | Kansas | Active | |
| Ohio Beta | November 26, 1915 | University of Cincinnati | Cincinnati | Ohio | Active | |
| Pennsylvania Gamma | February 19, 1916 | Carnegie Mellon University | Pittsburgh | Pennsylvania | Active | |
| Texas Alpha | June 10, 1916 | University of Texas at Austin | Austin | Texas | Active | |
| Ohio Gamma | February 12, 1921 | Ohio State University | Columbus | Ohio | Active | |
| Maryland Alpha | April 9, 1921 | Johns Hopkins University | Baltimore | Maryland | Active | |
| Pennsylvania Delta | April 11, 1921 | University of Pennsylvania | Philadelphia | Pennsylvania | Active | |
| Pennsylvania Epsilon | May 7, 1921 | Lafayette College | Easton | Pennsylvania | Active | |
| Virginia Alpha | May 28, 1921 | University of Virginia | Charlottesville | Virginia | Active | |
| Alabama Alpha | May 30, 1921 | Auburn University | Auburn | Alabama | Active | |
| California Beta | June 11, 1921 | California Institute of Technology | Pasadena | California | Active | |
| West Virginia Alpha | June 3, 1922 | West Virginia University | Morgantown | West Virginia | Active | |
| Missouri Gamma | June 5, 1922 | Washington University in St. Louis | St. Louis | Missouri | Active | |
| Massachusetts Beta | June 5, 1922 | Massachusetts Institute of Technology | Cambridge | Massachusetts | Active | |
| Washington Beta | March 17, 1923 | Washington State University | Pullman | Washington | Active | |
| Massachusetts Gamma | June 6, 1923 – 1938 | Harvard University | Cambridge | Massachusetts | Inactive | [b] |
| Connecticut Alpha | December 15, 1923 | Yale University | New Haven | Connecticut | Active | |
| Oregon Alpha | March 29, 1924 | Oregon State University | Corvallis | Oregon | Active | |
| Georgia Alpha | February 6, 1925 | Georgia Institute of Technology | Atlanta | Georgia | Active | |
| North Carolina Alpha | October 10, 1925 | North Carolina State University | Raleigh | North Carolina | Active | |
| Oklahoma Alpha | April 3, 1926 | University of Oklahoma | Norman | Oklahoma | Active | |
| Montana Alpha | April 15, 1926 | Montana State University | Bozeman | Montana | Active | |
| Alabama Βeta | November 20, 1926 | University of Alabama | Tuscaloosa | Alabama | Active | |
| Arizona Alpha | November 24, 1926 | University of Arizona | Tucson | Arizona | Active | |
| Massachusetts Delta | December 16, 1927 | Tufts University | Medford | Massachusetts | Active | |
| South Carolina Alpha | November 23, 1928 | Clemson University | Clemson | South Carolina | Active | |
| North Carolina Beta | November 24, 1928 – 1938 | University of North Carolina at Chapel Hill | Chapel Hill | North Carolina | Active | [c] |
| Indiana Beta | December 8, 1928 | Rose-Hulman Institute of Technology | Terre Haute | Indiana | Active | |
| Mississippi Alpha | December 15, 1928 | Mississippi State University | Starkville | Mississippi | Active | |
| Tennessee Alpha | November 15, 1929 | University of Tennessee | Knoxville | Tennessee | Active | |
| Maryland Beta | November 21, 1929 | University of Maryland, College Park | College Park | Maryland | Active | |
| Pennsylvania Zeta | November 24, 1930 | Drexel University | Philadelphia | Pennsylvania | Active | |
| New York Epsilon (See New York Rho) | December 4, 1931 – 1974 | New York University | Bronx | New York | Consolidated | [d] |
| New York Zeta (See New York Rho) | December 5, 1931 – 1974 | Polytechnic Institute of Brooklyn | Brooklyn | New York | Consolidated | [d] |
| Wisconsin Beta | December 3, 1932 | Marquette University | Milwaukee | Wisconsin | Active | |
| Virginia Beta | November 24, 1933 | Virginia Polytechnic Institute and State University | Blacksburg | Virginia | Active | |
| Delaware Alpha | November 25, 1933 | University of Delaware | Newark | Delaware | Active | |
| Utah Alpha | December 8, 1933 | University of Utah | Salt Lake City | Utah | Active | |
| New Jersey Beta | December 14, 1934 | Rutgers, The State University of New Jersey | New Brunswick | New Jersey | Active | |
| California Gamma | January 26, 1935 | Stanford University | Stanford | California | Active | |
| Louisiana Alpha | November 30, 1936 | Louisiana State University | Baton Rouge | Louisiana | Active | |
| Louisiana Beta | December 1, 1936 | Tulane University of Louisiana | New Orleans | Louisiana | Active | |
| Texas Beta | December 11, 1937 | Texas Tech University | Lubbock | Texas | Active | |
| New York Eta | November 30, 1940 | City College of the City University of New York | New York City | New York | Active | |
| Texas Gamma | December 18, 1940 | Rice University | Houston | Texas | Active | |
| Michigan Delta | January 20, 1941 | University of Detroit Mercy | Detroit | Michigan | Active | |
| New Jersey Gamma | November 29, 1941 | New Jersey Institute of Technology | Newark | New Jersey | Active | |
| New York Theta | December 4, 1941 | Clarkson University | Potsdam | New York | Active | |
| Illinois Gamma | December 6, 1941 | Northwestern University | Evanston | Illinois | Active | |
| Massachusetts Epsilon | December 13, 1941 | Northeastern University | Boston | Massachusetts | Active | |
| Tennessee Beta | December 7, 1946 | Vanderbilt University | Nashville | Tennessee | Active | |
| California Delta | January 10, 1947 | University of Southern California | Los Angeles | California | Active | |
| New York Iota | January 11, 1947 | Cooper Union School of Engineering | New York City | New York | Active | |
| Pennsylvania Eta | December 11, 1947 | Bucknell University | Lewisburg | Pennsylvania | Active | |
| New York Kappa | December 13, 1947 | University of Rochester | Rochester | New York | Active | |
| North Carolina Gamma | January 10, 1948 | Duke University | Durham | North Carolina | Active | |
| Texas Delta | October 11, 1948 | Texas A&M University and Texas A&M University at Qatar | College Station and Doha, Qatar | Texas | Active | |
| Connecticut Beta | January 8, 1949 | University of Connecticut | Storrs | Connecticut | Active | |
| North Dakota Alpha | January 14, 1950 | North Dakota State University | Fargo | North Dakota | Active | |
| New Hampshire Alpha | December 9, 1950 | University of New Hampshire | Durham | New Hampshire | Active | |
| Louisiana Gamma | February 17, 1951 | Louisiana Tech University | Ruston | Louisiana | Active | |
| Michigan Epsilon | March 10, 1951 | Wayne State University | Detroit | Michigan | Active | |
| California Epsilon | March 29, 1952 | University of California, Los Angeles | Los Angeles | California | Active | |
| New York Lambda | April 19, 1952 – 1993 | Pratt Institute | Brooklyn | New York | Inactive | [e] |
| Ohio Delta | February 21, 1953 | Ohio University | Athens | Ohio | Active | |
| Ohio Epsilon | February 22, 1953 | Cleveland State University | Cleveland | Ohio | Active | |
| Colorado Gamma | January 29, 1954 – May 30, 1975 | University of Denver | Denver | Colorado | Inactive | [f] |
| Rhode Island Alpha | February 12, 1954 | Brown University | Providence | Rhode Island | Active | |
| Rhode Island Beta | February 13, 1954 | University of Rhode Island | Kingston | Rhode Island | Active | |
| Ohio Zeta | February 20, 1954 | University of Toledo | Toledo | Ohio | Active | |
| Massachusetts Zeta | January 7, 1956 | University of Massachusetts Amherst | Amherst | Massachusetts | Active | |
| District of Columbia Alpha | March 10, 1956 | Howard University | Washington, D.C. | District of Columbia | Active | |
| California Zeta | April 21, 1956 | Santa Clara University | Santa Clara | California | Active | |
| South Carolina Beta | January 11, 1958 | University of South Carolina | Columbia | South Carolina | Active | |
| Vermont Alpha | December 20, 1958 | University of Vermont | Burlington | Vermont | Active | |
| Ohio Eta | February 21, 1959 | Air Force Institute of Technology | Wright-Patterson AFB | Ohio | Active | |
| Louisiana Delta | March 5, 1960 | University of Louisiana at Lafayette | Lafayette | Louisiana | Active | |
| Indiana Gamma | 1960 | University of Notre Dame | Notre Dame | Indiana | Active | |
| Florida Alpha | January 14, 1961 | University of Florida | Gainesville | Florida | Active | |
| Pennsylvania Theta | February 11, 1961 | Villanova University | Villanova | Pennsylvania | Active | |
| Ohio Theta | March 11, 1961 | University of Dayton | Dayton | Ohio | Active | |
| Texas Epsilon | February 10, 1962 | University of Houston | Houston | Texas | Active | |
| District of Columbia Beta | March 31, 1962 | Catholic University of America | Washington, D.C. | District of Columbia | Active | |
| District of Columbia Beta | February 16, 1963 | George Washington University | Washington, D.C. | District of Columbia | Active | |
| Arizona Beta | March 9, 1963 | Arizona State University | Tempe | Arizona | Active | |
| Indiana Delta | 1963 | Valparaiso University | Valparaiso | Indiana | Active | |
| Illinois Delta | January 18, 1964 | Bradley University | Peoria | Illinois | Active | |
| Florida Beta | January 25, 1964 | University of Miami | Coral Gables | Florida | Active | |
| California Eta | March 14, 1964 | San Jose State University | San Jose | California | Active | |
| Utah Beta | April 4, 1964 | Brigham Young University | Provo | Utah | Active | |
| New York Mu | April 11, 1964 | Union College | Schenectady | New York | Active | |
| California Theta | January 30, 1965 | California State University, Long Beach | Long Beach | California | Active | |
| Vermont Beta | March 13, 1965 | Norwich University | Northfield | Vermont | Active | |
| Kansas Beta | March 21, 1965 | Wichita State University | Wichita | Kansas | Active | |
| Washington Gamma | February 12, 1966 | Seattle University | Seattle | Washington | Active | |
| California Iota | February 18, 1967 | California State University, Los Angeles | Los Angeles | California | Active | |
| New York Nu | March 11, 1967 | University at Buffalo | Buffalo | New York | Active | |
| New York Xi | March 18, 1967 | Manhattan University | Bronx | New York | Active | |
| Tennessee Gamma | February 3, 1968 | Tennessee Technological University | Cookeville | Tennessee | Active | |
| California Kappa | February 17, 1968 | California State University, Northridge | Northridge | California | Active | |
| Texas Zeta | March 16, 1968 | Lamar University | Beaumont | Texas | Active | |
| Pennsylvania Iota | March 30, 1968 | Widener University | Chester | Pennsylvania | Active | |
| Puerto Rico Alpha | March 8, 1969 | University of Puerto Rico, Mayagüez Campus | Mayaguez | Puerto Rico | Active | |
| Mississippi Beta | March 15, 1969 | University of Mississippi | Oxford | Mississippi | Active | |
| Texas Eta | March 22, 1969 | University of Texas at Arlington | Arlington | Texas | Active | |
| Texas Theta | March 29, 1969 | University of Texas at El Paso | El Paso | Texas | Active | |
| California Lambda | May 3, 1969 | University of California, Davis | Davis | California | Active | |
| New York Omicron | April 26, 1970 | Stony Brook University | Stony Brook | New York | Active | |
| New York Pi | January 23, 1971 | Rochester Institute of Technology | Rochester | New York | Active | |
| Oklahoma Beta | February 13, 1971 | University of Tulsa | Tulsa | Oklahoma | Active | |
| Michigan Zeta | May 8, 1971 | Kettering University | Flint | Michigan | Active | |
| West Virginia Beta | January 29, 1972 | West Virginia University Institute of Technology | Beckley | West Virginia | Active | |
| California Mu | February 13, 1972 | California Polytechnic State University, San Luis Obispo | San Luis Obispo | California | Active | |
| California Nu | February 13, 1972 | California State Polytechnic University, Pomona | Pomona | California | Active | |
| New Jersey Delta | April 23, 1972 | Princeton University | Princeton | New Jersey | Active | |
| California Xi | March 4, 1973 | San Diego State University | San Diego | California | Active | |
| Wisconsin Gamma | March 17, 1973 | University of Wisconsin–Milwaukee | Milwaukee | Wisconsin | Active | |
| Ohio Iota | March 31, 1973 | Ohio Northern University | Ada | Ohio | Active | |
| Nebraska Alpha | January 26, 1974 | University of Nebraska–Lincoln | Lincoln | Nebraska | Active | |
| Kansas Gamma | January 27, 1974 | Kansas State University | Manhattan | Kansas | Active | |
| Florida Gamma | February 16, 1974 | University of South Florida | Tampa | Florida | Active | |
| California Omicron | March 9, 1974 | Loyola Marymount University | Los Angeles | California | Active | |
| California Pi | March 10, 1974 – December 31, 1991 | Northrop University | Inglewood | California | Inactive | [g] |
| Pennsylvania Kappa | March 20, 1974 | Swarthmore College | Swarthmore | Pennsylvania | Active | |
| Pennsylvania Lambda | March 21, 1974 | University of Pittsburgh | Pittsburgh | Pennsylvania | Active | |
| Kentucky Beta | March 24, 1974 | University of Louisville | Louisville | Kentucky | Active | |
| Tennessee Delta | March 30, 1974 | Christian Brothers University | Memphis | Tennessee | Active | |
| Texas Iota | April 2, 1974 | Southern Methodist University | Dallas | Texas | Active | |
| Texas Kappa | April 3, 1974 | Prairie View A&M University | Prairie View | Texas | Active | |
| Texas Lambda | April 4, 1974 | Texas A&M University-Kingsville | Kingsville | Texas | Active | |
| New Mexico Alpha | April 5, 1974 | New Mexico State University | Las Cruces | New Mexico | Active | |
| New Mexico Beta | April 6, 1974 | University of New Mexico | Albuquerque | New Mexico | Active | |
| Oklahoma Gamma | April 7, 1974 | Oklahoma State University | Stillwater | Oklahoma | Active | |
| Wyoming Alpha | April 19, 1974 | University of Wyoming | Laramie | Wyoming | Active | |
| Colorado Delta | April 20, 1974 | Colorado State University | Fort Collins | Colorado | Active | |
| South Dakota Alpha | April 22, 1974 | South Dakota School of Mines and Technology | Rapid City | South Dakota | Active | |
| South Dakota Beta | April 23, 1974 | South Dakota State University | Brookings | South Dakota | Active | |
| North Dakota Beta | April 24, 1974 | University of North Dakota | Grand Forks | North Dakota | Active | |
| Idaho Alpha | May 2, 1974 | University of Idaho | Moscow | Idaho | Active | |
| California Rho | May 9, 1974 | California State University, Fresno | Fresno | California | Active | |
| Nevada Alpha | May 10, 1974 | University of Nevada, Reno | Reno | Nevada | Active | |
| Utah Gamma | May 11, 1974 | Utah State University | Logan | Utah | Active | |
| Ohio Kappa | May 21, 1974 | University of Akron | Akron | Ohio | Active | |
| Ohio Lambda | May 22, 1974 | Youngstown State University | Youngstown | Ohio | Active | |
| New York Rho | May 26, 1974 | Polytechnic University | Brooklyn | New York | Active | [d] |
| Indiana Epsilon | February 22, 1975 | Trine University | Angola | Indiana | Active | |
| Alaska Alpha | April 5, 1975 | University of Alaska Fairbanks | Fairbanks | Alaska | Active | |
| Massachusetts Eta | April 19, 1975 | Boston University | Boston | Massachusetts | Active | |
| Illinois Epsilon | April 3, 1976 | Southern Illinois University at Carbondale | Carbondale | Illinois | Active | |
| Alabama Gamma | March 27, 1977 | University of Alabama at Birmingham | Birmingham | Alabama | Active | |
| Tennessee Epsilon | April 2, 1977 | University of Memphis | Memphis | Tennessee | Active | |
| Florida Delta | December 3, 1977 | University of Central Florida | Orlando | Florida | Active | |
| Michigan Eta | February 11, 1978 | Lawrence Technological University | Southfield | Michigan | Active | |
| Michigan Theta | February 17, 1979 | Oakland University | Rochester | Michigan | Active | |
| Virginia Gamma | March 17, 1979 | Old Dominion University | Norfolk | Virginia | Active | |
| North Carolina Delta | March 23, 1979 | University of North Carolina at Charlotte | Charlotte | North Carolina | Active | |
| Alabama Delta | January 26, 1980 | University of Alabama in Huntsville | Huntsville | Alabama | Active | |
| California Sigma | January 24, 1981 | University of California, Santa Barbara | Santa Barbara | California | Active | |
| Arizona Gamma | March 7, 1981 | Northern Arizona University | Flagstaff | Arizona | Active | |
| South Carolina Gamma | March 28, 1981 | The Citadel | Charleston | South Carolina | Active | |
| Michigan Iota | January 16, 1982 | University of Michigan–Dearborn | Dearborn | Michigan | Active | |
| California Tau | April 3, 1982 | University of California, Irvine | Irvine | California | Active | |
| Maryland Gamma | January 13, 1984 | United States Naval Academy | Annapolis | Maryland | Active | |
| Illinois Zeta | January 28, 1984 | University of Illinois at Chicago | Chicago | Illinois | Active | |
| California Upsilon | February 18, 1984 | California State University, Sacramento | Sacramento | California | Active | |
| Montana Beta | March 24, 1984 | Montana Technological University | Butte | Montana | Active | |
| Florida Epsilon | February 9, 1985 | Florida Atlantic University | Boca Raton | Florida | Active | |
| New Mexico Gamma | March 2, 1985 | New Mexico Institute of Mining and Technology | Socorro | New Mexico | Active | |
| Massachusetts Theta | March 9, 1985 | University of Massachusetts Lowell | Lowell | Massachusetts | Active | |
| Colorado Epsilon | November 23, 1985 | University of Colorado at Denver | Denver | Colorado | Active | |
| North Carolina Epsilon | February 18, 1986 | North Carolina Agricultural and Technical State University | Greensboro | North Carolina | Active | |
| Florida Zeta | March 1, 1986 | Florida Institute of Technology | Melbourne | Florida | Active | |
| California Phi | March 5, 1988 | University of the Pacific | Stockton | California | Active | |
| Michigan Kappa | March 18, 1989 | Western Michigan University | Kalamazoo | Michigan | Active | |
| Tennessee Zeta | January 6, 1990 | University of Tennessee at Chattanooga | Chattanooga | Tennessee | Active | |
| Alabama Epsilon | February 3, 1990 | University of South Alabama | Mobile | Alabama | Active | |
| Wisconsin Delta | March 10, 1990 | Milwaukee School of Engineering | Milwaukee | Wisconsin | Active | |
| Ohio Mu | May 5, 1990 | Wright State University | Dayton | Ohio | Active | |
| New York Sigma | February 2, 1991 | Alfred University | Alfred | New York | Active | |
| Virginia Delta | February 9, 1991 | Virginia Military Institute | Lexington | Virginia | Active | |
| Connecticut Gamma | March 9, 1991 | University of Hartford | West Hartford | Connecticut | Active | |
| New York Tau | March 16, 1991 | Binghamton University | Binghamton | New York | Active | |
| Wisconsin Epsilon | February 1, 1992 | University of Wisconsin–Platteville | Platteville | Wisconsin | Active | |
| Florida Eta | February 29, 1992 | Florida A&M University and Florida State University | Tallahassee | Florida | Active | |
| Massachusetts Iota | March 21, 1992 | Western New England College | Springfield | Massachusetts | Active | |
| California Chi | March 28, 1992 | California State University, Fullerton | Fullerton | California | Active | |
| Oregon Beta | February 13, 1993 | Portland State University | Portland | Oregon | Active | |
| Louisiana Epsilon | March 13, 1993 | University of New Orleans | New Orleans | Louisiana | Active | |
| Maryland Delta | December 11, 1993 | University of Maryland, Baltimore County | Baltimore | Maryland | Active | |
| California Psi | February 5, 1994 | University of California, San Diego | San Diego | California | Active | |
| Florida Theta | March 12, 1994 | Florida International University | Miami | Florida | Active | |
| Nevada Beta | February 4, 1995 | University of Nevada, Las Vegas | Las Vegas | Nevada | Active | |
| Georgia Beta | February 11, 1995 | Mercer University | Macon | Georgia | Active | |
| Washington Delta | February 25, 1995 | Gonzaga University | Spokane | Washington | Active | |
| Minnesota Beta | February 3, 1996 | University of Minnesota Duluth | Duluth | Minnesota | Active | |
| California Omega | February 10, 1996 | Harvey Mudd College | Claremont | California | Active | |
| California Alpha Alpha | March 2, 1996 | California State University, Chico | Chico | California | Active | |
| Colorado Zeta | March 8, 1997 | United States Air Force Academy | Colorado Springs | Colorado | Active | |
| Maryland Epsilon | March 7, 1998 | Morgan State University | Baltimore | Maryland | Active | |
| Ohio Nu | March 3, 2001 | Cedarville University | Cedarville | Ohio | Active | |
| Missouri Delta | January 26, 2002 | University of Missouri–Kansas City | Kansas City | Missouri | Active | |
| Oregon Gamma | February 9, 2002 | University of Portland | Portland | Oregon | Active | |
| New Hampshire Beta | February 23, 2002 | Dartmouth College | Hanover | New Hampshire | Active | |
| Texas Mu | March 3, 2002 | University of Texas at San Antonio | San Antonio | Texas | Active | |
| Virginia Epsilon | March 1, 2003 | Virginia Commonwealth University | Richmond | Virginia | Active | |
| Idaho Beta | January 17, 2004 | Idaho State University | Pocatello | Idaho | Active | |
| Michigan Lambda | March 27, 2004 | Grand Valley State University | Grand Rapids | Michigan | Active | |
| California Alpha Beta | February 12, 2005 | University of California, Riverside | Riverside | California | Active | |
| New Jersey Epsilon | January 28, 2006 | Rowan University | Glassboro | New Jersey | Active | |
| New York Upsilon | February 10, 2007 | United States Military Academy | West Point | New York | Active | |
| California Alpha Gamma | March 10, 2007 | San Francisco State University | San Francisco | California | Active | |
| California Alpha Delta | February 9, 2008 | University of California, Santa Cruz | Santa Cruz | California | Active | |
| Ohio Xi | February 23, 2008 | Miami University | Oxford | Ohio | Active | |
| Kentucky Gamma | February 27, 2009 | Western Kentucky University | Bowling Green | Kentucky | Active | |
| Idaho Gamma | March 13, 2010 | Boise State University | Boise | Idaho | Active | |
| Florida Iota | March 12, 2011 | Embry-Riddle Aeronautical University | Daytona Beach | Florida | Active | |
| California Alpha Epsilon | February 25, 2012 | University of San Diego | San Diego | California | Active | |
| Pennsylvania Mu | January 26, 2013 | Penn State Erie, The Behrend College | Erie | Pennsylvania | Active | |
| New Jersey Eta | March 2, 2013 | The College of New Jersey | Ewing Township | New Jersey | Active | |
| Missouri Epsilon | March 23, 2013 | Saint Louis University | St. Louis | Missouri | Active | |
| Texas Nu | March 22, 2014 | University of Texas Rio Grande Valley | Edinburg | Texas | Active | |
| Indiana Zeta | March 28, 2015 | Indiana University – Purdue University Indianapolis | Indianapolis | Indiana | Active | |
| Arizona Delta | April 11, 2015 | Embry–Riddle Aeronautical University, Prescott | Prescott | Arizona | Active | |
| North Carolina Zeta | March 19, 2016 | East Carolina University | Greenville | North Carolina | Active | |
| Idaho Delta | March 4, 2017 | Brigham Young University-Idaho | Rexburg | Idaho | Active | |
| Oregon Delta | April 14, 2018 | Oregon Institute of Technology | Klamath Falls | Oregon | Active | |
| Texas Xi | February 15, 2020 | University of Texas at Dallas | Dallas | Texas | Active | [7] |
| Arkansas Beta | March 7, 2020 | University of Arkansas at Little Rock | Little Rock | Arkansas | Active | [8] |
| Georgia Gamma | October 9, 2021 | Georgia Southern University | Statesboro | Georgia | Active | |
| Georgia Delta | February 25, 2023 | University of Georgia | Athens | Georgia | Active | |
| Tennessee Eta | March 4, 2023 | Lipscomb University | Nashville | Tennessee | Active | |
| North Carolina Eta | March 18, 2023 | Western Carolina University | Cullowhee | North Carolina | Active | |
| Massachusetts Kappa | March 25, 2023 | Merrimack College | North Andover | Massachusetts | Active | |