| Order | Chapter | Charter date and range | Institution | Location | Status | |
| 1 | Pennsylvania Alpha | –1868, 1873 | Washington & Jefferson College | Washington, Pennsylvania | Active | |
| 2 | Virginia Alpha | –1861, 1865 | | Charlottesville, Virginia | Active | |
| 3 | Virginia Beta | –1861, 1865–2015, 2021 | Washington and Lee University | Lexington, Virginia | Active | |
| 4 | Pennsylvania Beta | 1855 | Allegheny College | Meadville, Pennsylvania | Active | |
| 5 | Pennsylvania Gamma | 1855–1871, 1881–1988, 1991 | Bucknell University | Lewisburg, Pennsylvania | Inactive | |
| 6 | Pennsylvania Delta | 1855–1865 | Washington College | Washington, Pennsylvania | Merged | |
| 7 | Virginia Gamma | 1855–1861, 1865–1900 | Hampden–Sydney College | Hampden Sydney, Virginia | Inactive | |
| 8 | Pennsylvania Epsilon | 1855–2012, 2017 | Gettysburg College | Gettysburg, Pennsylvania | Active | |
| 9 | South Carolina Alpha | 1857–1861, 1867–1872, 1884–1892, 1972– | | Columbia, South Carolina | Inactive | |
| 10 | Mississippi Alpha | 1857–1861, 1881–1912, 1930 | University of Mississippi | Oxford, Mississippi | Active | |
| 11 | Virginia Delta | 1859–1882 | Bethany College | Bethany, West Virginia | Inactive | |
| 12 | Tennessee Alpha | 1859–1861 | La Grange Synodical College | La Grange, Tennessee | Inactive | |
| 13 | Pennsylvania Zeta | 1859–2007 | Dickinson College | Carlisle, Pennsylvania | Inactive | |
| 14 | Pennsylvania Eta | 1860 | Franklin & Marshall College | Lancaster, Pennsylvania | Active | |
| 15 | Tennessee Beta | 1860–1861, 1867–1879 | Northwestern University | Evanston, Illinois | Inactive | |
| 19 | Indiana Alpha | 1865 | DePauw University | Greencastle, Indiana | Active | |
| 20 | Kentucky Alpha | 1865–1866 | Transylvania University | Lexington, Kentucky | Inactive | |
| 21 | Illinois Beta | 1865–1869 | University of Chicago | Chicago, Illinois | Inactive, Reassigned | |
| 22 | Ohio Beta | 1866–1988, 1991 | Wittenberg University | Springfield, Ohio | Active | |
| 23 | Iowa Alpha | 1867–1876, 1885 | University of Iowa | Iowa City, Iowa | Active | |
| 24 | District of Columbia Alpha | –1899, 1991–2016 | George Washington University | Washington, D.C. | Inactive | |
| 25 | Iowa Gamma | 1868–1871 | Cornell College | Mount Vernon, Iowa | Inactive | |
| 26 | New York Alpha | 1869–1877, 1885–2020 | Cornell University | Ithaca, New York | Inactive | |
| 27 | Pennsylvania Theta | 1869 | Lafayette College | Easton, Pennsylvania | Inactive | |
| 28 | Indiana Beta | 1869–2015, February 9, 2019. | Indiana University Bloomington | Bloomington, Indiana | Active | |
| 29 | Missouri Alpha | 1869–1876, 1908–, 2019 | University of Missouri | Columbia, Missouri | Active | |
| 30 | Tennessee Gamma | 1870–1873 | University of Nashville | Nashville, Tennessee | Inactive | |
| 31 | Indiana Gamma | 1870–1901, 1948 | Wabash College | Crawfordsville, Indiana | Active | |
| 32 | Ohio Gamma | 1871–1892 | College of Wooster | Wooster, Ohio | Inactive | |
| 33 | Illinois Gamma | 1871–1884 | Monmouth College | Monmouth, Illinois | Inactive | |
| 34 | Virginia Epsilon | 1871–1879 | Randolph–Macon College | Ashland, Virginia | Inactive | |
| 35 | New York Gamma | –1876, 1892- | Columbia University | New York City, New York | Inactive | |
| 36 | Wisconsin Alpha | 1875–1894, 1897–1939, 1992–1992 | University of Wisconsin–Madison | Madison, Wisconsin | Inactive | |
| 37 | Kansas Alpha | 1876 | University of Kansas | Lawrence, Kansas | Active | |
| 38 | Michigan Alpha | 1876–1972, 1983–2023 | University of Michigan | Ann Arbor, Michigan | Inactive | |
| 39 | Wisconsin Beta | 1876–1877 | Racine College | Racine, Wisconsin | Inactive | |
| 40 | Pennsylvania Iota | 1877–1973, 1978 | University of Pennsylvania | Philadelphia, Pennsylvania | Active | |
| 41 | Maryland Alpha | 1879–1943, 1949–1969, 1975 | Johns Hopkins University | Baltimore, Maryland | Active | |
| 42 | Ohio Delta | 1880–2018 | Ohio State University | Columbus, Ohio | Colony | |
| 43 | California Alpha | 1881–1892 | University of the Pacific | Stockton, California | Inactive | |
| 44 | New York Delta | 1881–1893 | Hobart College | Geneva, New York | Inactive | |
| 45 | Wisconsin Gamma | 1881–1970, 1978 | Beloit College | Beloit, Wisconsin | Active | |
| 46 | Iowa Delta | 1882–1889 | Simpson College | Indianola, Iowa | Inactive | |
| 47 | Minnesota Alpha | 1883–1888 | Carleton College | Northfield, Minnesota | Inactive | |
| 48 | New York Beta | –, 2001 | Syracuse University | Syracuse, New York | Active | |
| 49 | New York Epsilon | – | Colgate University | Hamilton, New York | Inactive | |
| 50 | Minnesota Beta | 1888 | University of Minnesota | Minneapolis, Minnesota | Active | |
| 51 | Pennsylvania Kappa | 1889– | Swarthmore College | Swarthmore, Pennsylvania | Inactive | |
| 52 | West Virginia Alpha | 1890–2013, 2017 | West Virginia University | Morgantown, West Virginia | Active | |
| 53 | California Beta | | Stanford University | Stanford, California | Active | |
| 54 | New York Zeta | 1893–1912 | Polytechnic Institute of Brooklyn | Brooklyn, New York | Inactive | |
| 21 | Illinois Beta | 1894–1970, 1985–1997 | University of Chicago | Chicago, Illinois | Inactive | |
| 55 | Nebraska Alpha | 1895–2016, 2021 | University of Nebraska–Lincoln | Lincoln, Nebraska | Active | |
| 56 | Massachusetts Alpha | 1895–1948 | Amherst College | Amherst, Massachusetts | Inactive | |
| 57 | New Hampshire Alpha | –1967 | Dartmouth College | Hanover, New Hampshire | Inactive | |
| 58 | California Gamma | –1971, 1978–1991, 1996–1998, 2010 | | Berkeley, California | Active | |
| 59 | Indiana Delta | 1901 | Purdue University | West Lafayette, Indiana | Active | |
| 60 | Tennessee Delta | 1901–2009, 2012–2018, 2024 | Vanderbilt University | Nashville, Tennessee | Active | |
| 61 | Rhode Island Alpha | –1978, –2012 | Brown University | Providence, Rhode Island | Inactive | |
| 62 | Texas Alpha | 1904 | University of Texas at Austin | Austin, Texas | Active | |
| 63 | Illinois Delta | 1904 | University of Illinois Urbana-Champaign | Champaign, Illinois | Active | |
| 64 | Ohio Epsilon | 1906 | Case Western Reserve University | Cleveland, Ohio | Active | |
| 65 | Pennsylvania Lambda | 1912 | Pennsylvania State University | State College, Pennsylvania | Active | |
| 66 | Iowa Beta | –1999, 2007 | Iowa State University | Ames, Iowa | Active | |
| 67 | Colorado Alpha | 1914–1994, 1998 | University of Colorado Boulder | Boulder, Colorado | Active | |
| 68 | Washington Alpha | 1914 | University of Washington | Seattle, Washington | Active | |
| 69 | Oklahoma Alpha | 1920–1996, 1999 | University of Oklahoma | Norman, Oklahoma | Active | |
| 70 | Oregon Alpha | 1923–1972, 1976–2000, 2010–2019, 2023 | University of Oregon | Eugene, Oregon | Active | |
| 71 | California Delta | 1927–2018 | University of Southern California | Los Angeles, California | Inactive | |
| 72 | Pennsylvania Mu | 1927–1934 | Carnegie Mellon University | Pittsburgh, Pennsylvania | Inactive | |
| 73 | California Epsilon | 1931–2011, 2015 | University of California, Los Angeles | Los Angeles, California | Active | |
| 74 | North Carolina Alpha | 1934–2001 | Duke University | Durham, North Carolina | Inactive | |
| 75 | Arizona Alpha | –1962; 1977 – January 20, 2012 | University of Arizona | Tucson, Arizona | Inactive | |
| 76 | Oregon Beta | 1948 | Oregon State University | Corvallis, Oregon | Active | |
| 77 | Ohio Zeta | 1950–1997, 2009–2018 | Bowling Green State University | Bowling Green, Ohio | Inactive | |
| 78 | Ohio Eta | 1950 | University of Toledo | Toledo, Ohio | Active | |
| 79 | New York Eta | –1970, 1984–2023 | University of Buffalo | Buffalo, New York | Inactive | |
| 80 | Indiana Epsilon | | Valparaiso University | Valparaiso, Indiana | Active | |
| 81 | Texas Beta | | Texas Tech University | Lubbock, Texas | Active | |
| 82 | Michigan Beta | 1954 | Michigan State University | East Lansing, Michigan | Active | |
| 83 | Connecticut Alpha | 1956–1971 | Trinity College | Hartford, Connecticut | Inactive | |
| 84 | Missouri Beta | – | Westminster College | Fulton, Missouri | Inactive | |
| 85 | Florida Alpha | –1969,
| Florida State University | Tallahassee, Florida | Active | |
| 86 | Arizona Beta | –2013; February 8, 2020 | Arizona State University | Tempe, Arizona | Active | |
| 87 | Alabama Alpha | | University of Alabama | Tuscaloosa, Alabama | Active | |
| 88 | California Zeta | –1972, 1982– | University of California, Santa Barbara | Santa Barbara, California | Inactive | |
| 89 | New Jersey Alpha | 1965–1993 | Rider University | Lawrence Township, New Jersey | Inactive | |
| 90 | Nebraska Beta | –2017 | Creighton University | Omaha, Nebraska | Inactive | |
| 91 | Rhode Island Beta | –1988, 1990–2008, 2016 | University of Rhode Island | Kingston, Rhode Island | Active | |
| 92 | Ohio Theta | 1966 | Ashland University | Ashland, Ohio | Active | |
| 93 | California Eta | 1966 | California Polytechnic State University, San Luis Obispo | San Luis Obispo, California | Active | |
| 94 | Louisiana Alpha | | Louisiana State University | Baton Rouge, Louisiana | Active | |
| 95 | Florida Beta | 1967–1971, 1977-1991 | University of Florida | Gainesville, Florida | Inactive | |
| 96 | Oklahoma Beta | 1967–1991 | Oklahoma State University–Stillwater | Stillwater, Oklahoma | Inactive | |
| 97 | Tennessee Epsilon | 1967 | University of Tennessee | Knoxville, Tennessee | Active | |
| 98 | California Theta | –1995; April 7, 2018 | California State University, Northridge | Los Angeles, California | Active | |
| 99 | New Jersey Beta | –1994, 2010 | Monmouth University | West Long Branch, New Jersey | Active | |
| 100 | Texas Gamma | –, 2002–2017 | Texas State University | San Marcos, Texas | Inactive | |
| 101 | Louisiana Beta | –1991, | University of Louisiana at Lafayette | Lafayette, Louisiana | Active | |
| 102 | Minnesota Gamma | 1969 | Minnesota State University, Mankato | Mankato, Minnesota | Active | |
| 103 | New Mexico Alpha | 1969–2007 | Eastern New Mexico University | Portales, New Mexico | Inactive | |
| 104 | Pennsylvania Nu | 1970–2020 | Indiana University of Pennsylvania | Indiana County, Pennsylvania | Inactive | |
| 105 | Ohio Iota | 1970–1997, 2015 | University of Akron | Akron, Ohio | Active | |
| 106 | Tennessee Zeta | – | University of Memphis | Memphis, Tennessee | Inactive | |
| 107 | Indiana Zeta | 1971–2015, 2022 | Butler University | Indianapolis, Indiana | Active | |
| 108 | Ohio Kappa | 1971–1978, 2018–2023 | Kent State University | Kent, Ohio | Inactive | |
| 109 | Ohio Lambda | 1972–2015, 2024 | Miami University | Oxford, Ohio | Active | |
| 110 | Alabama Beta | –1988, 2005–2019 | Auburn University | Auburn, Alabama | Inactive | |
| 111 | Montana Alpha | – | University of Montana | Missoula, Montana | Inactive | |
| 112 | Virginia Zeta | 1976–2010; September 29, 2018 | Virginia Tech | Blacksburg, Virginia | Active | |
| 113 | Georgia Alpha | 1976 | University of Georgia | Athens, Georgia | Active | |
| 114 | California Iota | –1995, 1998–2000, 2006–2020 | University of California, Davis | Davis, California | Inactive | |
| 115 | Arkansas Alpha | –1991 | University of Arkansas | Fayetteville, Arkansas | Inactive | |
| 116 | Pennsylvania Xi | –2021 | Edinboro University of Pennsylvania | Edinboro, Pennsylvania | Inactive | |
| 117 | Illinois Epsilon | –2017 | Illinois State University | Normal, Illinois | Active | |
| 118 | Delaware Alpha | –, | University of Delaware | Newark, Delaware | Active | |
| 119 | Pennsylvania Omicron | – | Lehigh University | Bethlehem, Pennsylvania | Inactive | - |
| 120 | Indiana Eta | | Indiana State University | Terre Haute, Indiana | Active | |
| 121 | New Jersey Gamma | –, 2012–Spring 2019 | Rutgers University–New Brunswick | New Brunswick, New Jersey | Inactive | |
| 122 | Pennsylvania Pi | –1993 | Temple University | Philadelphia, Pennsylvania | Inactive | |
| 123 | Kentucky Beta | –2016 | University of Kentucky | Lexington, Kentucky | Colony | |
| 124 | Texas Delta | 1988–1997 | Southern Methodist University | Dallas, Texas | Inactive | |
| 125 | Maryland Beta | –1996 | University of Maryland, Baltimore County | Catonsville, Maryland | Inactive | |
| 126 | New Jersey Delta | –2018, 2024 | The College of New Jersey | Ewing, New Jersey | Active | |
| 127 | California Kappa | | University of California, Irvine | Irvine, California | Active | |
| 128 | Massachusetts Beta | | Brandeis University | Waltham, Massachusetts | Active | |
| 129 | North Carolina Beta | 1991–2021 | East Carolina University | Greenville, North Carolina | Inactive | |
| 130 | New York Theta | 1992 | Rochester Institute of Technology | Rochester, New York | Active | |
| 131 | Pennsylvania Rho | | York College of Pennsylvania | Spring Garden Township, Pennsylvania | Active | |
| 132 | Louisiana Gamma | –2017 | Loyola University New Orleans | New Orleans, Louisiana | Inactive | |
| 133 | Illinois Zeta | | DePaul University | Chicago, Illinois | Active | |
| 134 | California Lambda | –2008; May 1, 2010–Mar 10, 2025 | San Diego State University | San Diego, California | Inative | |
| 135 | Pennsylvania Sigma | | Saint Joseph's University
| Philadelphia, Pennsylvania | Active | |
| 136 | Illinois Eta | 1999 | Southern Illinois University Edwardsville | Edwardsville, Illinois | Active | |
| 137 | New Jersey Epsilon | | Rowan University | Glassboro, New Jersey | Active | |
| 138 | Georgia Beta | | Georgia Institute of Technology | Atlanta, Georgia | Active | |
| 139 | Pennsylvania Upsilon | | Drexel University | Philadelphia, Pennsylvania | Active | |
| 140 | Pennsylvania Tau | –2003 | Penn State Altoona | Logan Township, Pennsylvania | Inactive | |
| 141 | Texas Epsilon | 2002 | Stephen F. Austin State University | Nacogdoches, Texas | Active | |
| 142 | Minnesota Delta | | University of Minnesota Duluth | Duluth, Minnesota | Active | |
| 143 | Illinois Theta | | University of Illinois at Chicago | Chicago, Illinois | Active | |
| 144 | Pennsylvania Phi | | Lycoming College | Williamsport, Pennsylvania | Active | |
| 145 | New York Iota | 2004 | Binghamton University | Binghamton, New York | Active | |
| 146 | New York Kappa | 2004 | State University of New York at Oneonta | Oneonta, New York | Active | |
| 147 | Ohio Mu | 2005 | University of Dayton | Dayton, Ohio | Active | |
| 148 | Illinois Iota | | Northern Illinois University | DeKalb, Illinois | Active | |
| 149 | Maryland Gamma | | University of Maryland, College Park | College Park, Maryland | Active | |
| 150 | Texas Zeta | 2008 | Houston Christian University | Houston, Texas | Active | |
| 151 | Ohio Nu | 2008 | Ohio University | Athens, Ohio | Active | |
| 152 | California Mu | –2018 | Occidental College | Los Angeles, California | Inactive | |
| 153 | Indiana Theta | –2017 | Indiana University–Purdue University Indianapolis | Indianapolis, Indiana, | Inactive | |
| 154 | California Nu | –2020 | University of California, Riverside | Riverside, California | Inactive | |
| 155 | Ohio Xi | 2010 | Capital University | Bexley, Ohio | Active | |
| 156 | California Xi | –2022 | California State University, Long Beach | Long Beach, California | Inactive | |
| 157 | Ohio Omicron | 2011 | Muskingum University | New Concord, Ohio | Active | |
| 158 | Virginia Eta | 2012–2022, 2024 | Virginia Commonwealth University | Richmond, Virginia | Active | |
| 159 | Indiana Iota | | Ball State University | Muncie, Indiana | Active | |
| 160 | Alabama Gamma | | University of Alabama in Huntsville | Huntsville, Alabama | Active | |
| 161 | Ohio Pi | | Denison University | Granville, Ohio | Active | |
| 162 | Maryland Delta | | Towson University | Towson, Maryland | Active | |
| 163 | Virginia Theta | | James Madison University | Harrisonburg, Virginia | Active | |
| 164 | Texas Eta | | Texas A&M University | College Station, Texas | Active | |
| 165 | South Carolina Beta | | Clemson University | Clemson, South Carolina | Active | |