Chapter name | Charter date and range | Institution | City | State or Province | Status | References |
Cornell | November 1886 | Cornell University | Ithaca | New York | Active | |
R.P.I. | 1887 | Rensselaer Polytechnic Institute | Troy | New York | Active | |
Union | 1887 | Union College | Schenectady | New York | Active | |
Kansas | 1890 | University of Kansas | Lawrence | Kansas | Active | |
Yale | 1895 | Yale University | New Haven | Connecticut | Active | |
Minnesota | 1896 | University of Minnesota | Minneapolis | Minnesota | Active | |
Nebraska | 1897 | University of Nebraska–Lincoln | Lincoln | Nebraska | Active | |
Ohio State | 1898 | Ohio State University | Columbus | Ohio | Active | |
Penn | 1899 | University of Pennsylvania | Philadelphia | Pennsylvania | Active | |
Brown | 1900 | Brown University | Providence | Rhode Island | Active | |
Iowa | 1900 | University of Iowa | Iowa City | Iowa | Active | |
Stanford | 1901 | Stanford University | Stanford | California | Active | |
California | 1902 | University of California, Berkeley | Berkeley | California | Active | |
Columbia | 1902 | Columbia University | New York City | New York | Active | |
Chicago | 1903 | University of Chicago | Chicago | Illinois | Active | |
Michigan | 1903 | University of Michigan | Ann Arbor | Michigan | Active | |
Case Western Reserve | 1904 | Case Western Reserve University | Cleveland | Ohio | Active | [a] |
Indiana | 1904 | Indiana University Bloomington | Bloomington | Indiana | Active | |
Colorado | 1905 | University of Colorado Boulder | Boulder | Colorado | Active | |
Missouri | 1905 | University of Missouri | Columbia | Missouri | Active | |
Northwestern | 1906 | Northwestern University | Evanston | Illinois | Active | |
Syracuse | 1906 | Syracuse University | Syracuse | New York | Active | |
Washington | 1907 | University of Washington | Seattle | Washington | Active | |
Wisconsin, Madison | 1907 | University of Wisconsin–Madison | Madison | Wisconsin | Active | |
Worcester Tech | 1908 | Worcester Polytechnic Institute | Worcester | Massachusetts | Active | |
Purdue | 1909 | Purdue University | West Lafayette | Indiana | Active | |
Washington (MO) | 1910 | Washington University | St. Louis | Missouri | Active | |
District of Columbia | 1915 | NA | Washington | D.C. | Active | [b] |
Texas | 1915 | University of Texas at Austin | Austin | Texas | Active | |
Mayo Foundation | 1920 | Mayo Clinic | Rochester | Minnesota | Active | [c] |
North Carolina | 1920 | University of North Carolina | Chapel Hill | North Carolina | Active | |
North Dakota | 1920 | University of North Dakota | Grand Forks | North Dakota | Active | |
Iowa State | 1921 | Iowa State University | Ames | Iowa | Active | |
Idaho | 1922 | University of Idaho | Moscow | Idaho | Active | |
Kentucky | 1922 | University of Kentucky | Lexington | Kentucky | Active | |
McGill | 1922 | McGill University | Montreal | Quebec, Canada | Active | |
Rutgers | 1922 | Rutgers University | New Brunswick | New Jersey | Active | |
Oregon | 1923 | University of Oregon | Eugene | Oregon | Active | |
Swarthmore | 1923 | Swarthmore University | Swarthmore | Pennsylvania | Active | |
Cal Tech | 1924 | California Institute of Technology | Pasadena | California | Active | |
Johns Hopkins | 1924 | Johns Hopkins University | Baltimore | Maryland | Active | |
Virginia | 1924 | University of Virginia | Charlottesville | Virginia | Active | |
Cincinnati | 1926 | University of Cincinnati | Cincinnati | Ohio | Active | |
N.Y.U. | 1926 | New York University | New York City | New York | Active | |
Michigan State | 1927 | Michigan State University | East Lansing | Michigan | Active | |
Arizona | 1928 | University of Arizona | Tucson | Arizona | Active | |
Illinois, Chicago Medicine ? | 1928–19xx ? | Chicago Medical Society ? | Chicago | Illinois | Inactive | [d] |
Kansas State | 1928 | Kansas State University | Manhattan | Kansas | Active | |
Lehigh | 1928 | Lehigh University | Bethlehem | Pennsylvania | Active | |
Maryland | 1928 | University of Maryland | College Park | Maryland | Active | |
Oklahoma | 1930 | University of Oklahoma | Norman | Oklahoma | Active | |
Penn State | 1930 | Pennsylvania State University | State College | Pennsylvania | Active | |
Rochester | 1930 | University of Rochester | Rochester | New York | Active | |
Washington State | 1930 | Washington State University | Pullman | Washington | Active | |
Wyoming | 1930 | University of Wyoming | Laramie | Wyoming | Active | |
Harvard | 1931 | Harvard University | Cambridge | Massachusetts | Active | |
Pitt | 1931 | University of Pittsburgh | Pittsburgh | Pennsylvania | Active | |
Princeton | 1932 | Princeton University | Princeton | New Jersey | Active | |
Western Reserve (see Case Western Reserve) | 1932 | Western Reserve University | Cleveland | Ohio | Consolidated | [a] |
Duke | 1933 | Duke University | Durham | North Carolina | Active | |
U.C.L.A. | 1933 | University of California, Los Angeles | Los Angeles | California | Active | |
M.I.T. | 1934 | Massachusetts Institute of Technology | Cambridge | Massachusetts | Active | |
Tulane | 1934 | Tulane University | New Orleans | Louisiana | Active | |
Smith | 1935 | Smith College | Northampton | Massachusetts | Active | |
Wesleyan | 1935 | Wesleyan University | Middletown | Connecticut | Active | |
Buffalo | 1936 | University at Buffalo (SUNY) | Buffalo | New York | Active | |
Carleton | 1936 | Carleton College | Northfield | Minnesota | Active | |
Carnegie Tech | 1937 | Carnegie Mellon University | Pittsburgh | Pennsylvania | Active | |
George Washington | 1937 | George Washington University | Washington | D.C. | Active | |
Oregon State | 1937 | Oregon State University | Corvallis | Oregon | Active | |
Utah | 1937 | University of Utah | Salt Lake City | Utah | Active | |
Florida | 1938 | University of Florida | Gainesville | Florida | Active | |
Massachusetts | 1938 | University of Massachusetts | Amherst | Massachusetts | Active | |
Rice | 1938 | Rice University | Houston | Texas | Active | |
Wellesley | 1938 | Wellesley College | Wellesley | Massachusetts | Active | |
Alabama | 1939 | University of Alabama | Tuscaloosa | Alabama | Active | |
West Virginia | 1939 | West Virginia University | Morgantown | West Virginia | Active | |
USC | 1940 | University of Southern California ? | Los Angeles | California | Active | |
V.P.I. | 1940 | Virginia Tech | Blacksburg | Virginia | Active | |
Bryn Mawr | 1941 | Bryn Mawr College | Bryn Mawr | Pennsylvania | Active | |
Oberlin | 1941 | Oberlin College | Cleveland | Ohio | Active | |
Illinois Tech | 1942 | Illinois Institute of Technology | Chicago | Illinois | Active | |
L.S.U. | 1942 | Louisiana State University | Baton Rouge | Louisiana | Active | |
Utah State | 1942 | Utah State University | Logan | Utah | Active | |
Polytechnic/SUNY Old Westbury | 1943 | New York Institute of Technology | Old Westbury | New York | Active | [e] |
Radcliffe | 1943–19xx ? | Radcliffe College | Cambridge | Massachusetts | Consolidated | [f] |
Tufts | 1943 | Tufts University | Medford | Massachusetts | Active | |
Emory | 1944 | Emory University | Atlanta | Georgia | Active | |
North Carolina State | 1944 | North Carolina State University | Raleigh | North Carolina | Active | |
St. Louis | 1944 | Saint Louis University | St. Louis | Missouri | Active | |
Vanderbilt | 1944 | Vanderbilt University | Nashville | Tennessee | Active | |
Wayne State | 1944 | Wayne State University | Detroit | Michigan | Active | |
Catholic | 1945 | Catholic University of America | Washington | D.C. | Active | |
Connecticut | 1945 | University of Connecticut | Storrs | Connecticut | Active | |
Georgia | 1946 | University of Georgia | Athens | Georgia | Active | |
Vermont | 1946 | University of Vermont | Burlington | Vermont | Active | |
Cal. Davis | 1947 | University of California, Davis | Davis | California | Active | |
Hawaii | 1947 | University of Hawaiʻi | Manoa | Hawaii | Active | |
Maine | 1948 | University of Maine | Orono | Maine | Active | |
Oklahoma State | 1949 | Oklahoma State University | Stillwater | Oklahoma | Active | |
Temple | 1949 | Temple University | Philadelphia | Pennsylvania | Active | |
Amherst | 1950 | Amherst College | Amherst | Massachusetts | Active | |
Auburn | 1950 | Auburn University | Auburn | Alabama | Active | |
Brigham Young | 1950 | Brigham Young University | Provo | Utah | Active | |
Denver | 1950 | University of Denver | Denver | Colorado | Active | |
Montana State | 1950 | Montana State University | Bozeman | Montana | Active | |
Tennessee | 1950 | University of Tennessee | Knoxville | Tennessee | Active | |
Texas A&M | 1951 | Texas A&M University | College Station | Texas | Active | |
Boston | 1952 | Boston University | Boston | Massachusetts | Active | |
Notre Dame | 1952 | University of Notre Dame | Notre Dame | Indiana | Active | |
Columbia-Willamette | 1952 | NA | Portland | Oregon | Active | [g] |
Arkansas | 1953 | University of Arkansas | Fayetteville | Arkansas | Active | |
Colorado State | 1953 | Colorado State University | Fort Collins | Colorado | Active | |
Georgia Tech | 1953 | Georgia Tech University | Atlanta | Georgia | Active | |
Rhode Island | 1953 | University of Rhode Island | Kingston | Rhode Island | Active | |
Brooklyn | 1954 | Brooklyn College ? | Brooklyn | New York | Active | |
Missouri Mines | 1954 | Missouri University of Science and Technology | Rolla | Missouri | Active | |
New Hampshire | 1954 | University of New Hampshire | Durham | New Hampshire | Active | |
New Mexico | 1954 | University of New Mexico | Albuquerque | New Mexico | Active | |
Stevens Tech | 1954 | Stevens Institute of Technology | Hoboken | New Jersey | Active | |
Texas, Medical | 1954 | University of Texas Medical Branch | Galveston | Texas | Active | |
Florida State | 1955 | Florida State University | Tallahassee | Florida | Active | |
Louisville | 1955 | University of Louisville | Louisville | Kentucky | Active | |
Loyola, Chicago | 1955 | Loyola University Chicago | Chicago | Illinois | Active | |
Tennessee, Medical | 1956 | Area chapter ? | city | Tennessee | Inactive | |
Alabama, Medical | 1957 | University of Alabama at Birmingham | Birmingham | Alabama | Active | |
Howard | 1957 | Howard University | Washington | D.C. | Active | |
New Mexico State | 1957 | New Mexico State University | Las Cruces | New Mexico | Active | |
South Dakota | 1957 | University of South Dakota | Vermillion | South Dakota | Active | [h] |
Fordham | 1958 | Fordham University | The Bronx | New York | Active | |
Rockefeller Institute | 1958 | Rockefeller University | New York City | New York | Active | |
South Carolina | 1958 | University of South Carolina | Columbia | South Carolina | Active | |
U.S. Navy Postgraduate School | 1958 | Naval Postgraduate School | Monterey | California | Active | |
Delaware | 1959 | University of Delaware | Newark | Delaware | Active | |
Marquette | 1960 | Marquette University | Milwaukee | Wisconsin | Active | |
Texas Tech | 1960 | Texas Tech University | Lubbock | Texas | Active | |
Ohio | 1961 | Ohio University | Athens | Ohio | Active | |
South Dakota State | 1961 | South Dakota State University | Brookings | South Dakota | Active | |
Chicago Medical | 1962 | University of Illinois Chicago ? | Chicago | Illinois | Active | |
Central Arkansas | 1963 | Area chapter | Little Rock | Arkansas | Active | |
Cal, Riverside | 1963 | University of California, Riverside | Riverside | California | Active | |
VCU | 1963 | Virginia Commonwealth University | Richmond | Virginia | Active | [i] |
North Dakota State | 1963 | North Dakota State University | Fargo | North Dakota | Active | |
Montana | 1964 | University of Montana | Missoula | Montana | Active | |
Arizona State | 1965 | Arizona State University | Phoenix | Arizona | Active | |
Colorado Mines | 1965 | Colorado School of Mines | Golden | Colorado | Active | |
Hamilton | 1965 | Hamilton College | Clinton, Oneida County | New York | Active | |
Northeastern | 1965 | Northeastern University | Boston | Massachusetts | Active | |
South Dakota Mines | 1965 | South Dakota School of Mines and Technology | Rapid City | South Dakota | Active | |
Wake Forest | 1965 | Wake Forest University | Winston-Salem | North Carolina | Active | |
Boston College | 1966 | Boston College | Chestnut Hill | Massachusetts | Active | |
Clemson | 1966 | Clemson University | Clemson | South Carolina | Active | |
Houston | 1966 | University of Houston | Houston | Texas | Active | |
Idaho State | 1966 | Idaho State University | Pocatello | Idaho | Active | |
Mississippi State | 1966 | Mississippi State University | Starkville | Mississippi | Active | |
Southern Illinois | 1966 | Southern Illinois University Carbondale | Carbondale | Illinois | Active | |
Georgetown | 1967 | Georgetown University | Washington | D.C. | Active | |
Jefferson Medical | 1967 | Thomas Jefferson University ? | Philadelphia | Pennsylvania | Active | |
Kent | 1967 | Kent State University | Kent | Ohio | Active | |
Mississippi Medical | 1967 | University of Mississippi Medical Center ? | Jackson | Mississippi | Active | [j] |
Mount Holyoke | 1967 | Mount Holyoke College | South Hadley | Massachusetts | Active | |
Northern Arizona | 1967 | Area chapter | Flagstaff | Arizona | Active | |
Texas Christian | 1967 | Texas Christian University | Fort Worth | Texas | Active | |
Baylor | 1968 | Baylor University | Waco | Texas | Active | |
Dartmouth | 1968 | Dartmouth College | Hanover | New Hampshire | Active | |
Manhattan College | 1968 | Manhattan College | The Bronx | New York | Active | [k] |
Queens University | 1968 | Queens University of Charlotte | Charlotte | North Carolina | Active | |
Manitoba | 1968 | University of Manitoba | Winnipeg | Manitoba, Canada | Active | |
Hunter | 1969 | Hunter College | New York City | New York | Active | |
Indiana, Indianapolis Medical | 1969 | Indiana University School of Medicine ? | Indianapolis | Indiana | Active | |
Miami (FL) | 1969 | University of Miami | Coral Gables | Florida | Active | |
Northern Illinois | 1969 | Northern Illinois University | DeKalb | Illinois | Active | |
SUNY, Downstate Medical | 1969 | SUNY Downstate Medical Center | Brooklyn | New York | Active | |
Akron | 1969 | University of Akron | Akron | Ohio | Active | |
Nevada | 1969 | University of Nevada | Reno | Nevada | Active | |
Cal, Santa Barbara | 1970 | University of California, Santa Barbara | Santa Barbara | California | Active | |
SUNY, Albany | 1970 | University at Albany, SUNY | Albany | New York | Active | |
CUNY | 1971 | City University of New York ? | New York City | New York | Active | |
Clarkson University | 1971 | Clarkson University | Potsdam (village | New York | Active | |
Michigan Tech | 1971 | Michigan Technological University | Houghton | Michigan | Active | |
Drexel | 1972 | Drexel University | Philadelphia | Pennsylvania | Active | |
Miami (OH) | 1972 | Miami University | Oxford | Ohio | Active | |
Texas, Arlington | 1972 | University of Texas at Arlington | Arlington | Texas | Active | |
Mississippi | 1972 | University of Mississippi ? | Oxford | Mississippi | Active | |
Cal, Northridge | 1973 | California State University, Northridge | Northridge | California | Active | |
East Carolina | 1974 | East Carolina University | Greenville | North Carolina | Active | |
Portland State | 1974 | Portland State University | Portland | Oregon | Active | |
Tuskegee University | 1974 | Tuskegee University | Tuskegee | Alabama | Active | |
Bowling Green | 1975 | Bowling Green State University | Bowling Green | Ohio | Active | |
Georgia Medical | 1975 | Georgia Medical College ? | ? | Georgia | Inactive ? | |
Lehman | 1975 | Lehman College | New York City | New York | Active | |
Oakland | 1975–19xx | Area chapter ? | Oakland ? | California | Inactive ? | |
Texas, El Paso | 1975 | University of Texas at El Paso | El Paso | Texas | Active | |
Dayton | 1975 | University of Dayton | Dayton | Ohio | Active | |
South Alabama | 1975 | University of South Alabama | Mobile | Alabama | Active | |
Loma Linda | 1976 | Loma Linda University | Loma Linda | California | Active | |
New Jersey Tech. | 1976 | New Jersey Institute of Technology | Newark | New Jersey | Active | |
Oklahoma Health Science Center | 1976 | University of Oklahoma Health Sciences Center | Oklahoma City | Oklahoma | Active | |
Southern Methodist | 1976 | Southern Methodist University | University Park | Texas | Active | |
Toledo | 1976 | University of Toledo | Toledo | Ohio | Active | |
Abbott Laboratories | 1977 | Abbott Laboratories | All offices | NA | Active | |
Guelph | 1977 | University of Guelph | Guelph | Ontario, Canada | Active | |
Huntsville | 19xx–19xx ? | University of Alabama in Huntsville | Huntsville | Alabama | Inactive ? | |
Arkansas State | 19xx ? | Arkansas State University | Jonesboro | Arkansas | Active | |
Boeing North America | ? | NA | Seal Beach | California | Active | |
California Polytechnic State University | ? | California Polytechnic State University | San Luis Obispo | California | Active | |
California State Polytechnic University | ? | California State Polytechnic University | Pomona | California | Active | |
California State University-Bakersfield | ? | California State University, Bakersfield | Bakersfield | California | Active | |
California State University-Chico | ? | California State University, Chico | Chico | California | Active | |
California State University-Dominguez Hills | ? | California State University, Dominguez Hills | Carson | California | Active | |
California State University-Fresno | ? | California State University, Fresno | Fresno | California | Active | |
California State University-Hayward | ? | California State University, East Bay | Hayward | California | Active | |
California State University-Long Beach | ? | California State University, Long Beach | Long Beach | California | Active | |
California State University-Sacramento | ? | California State University, Sacramento | Sacramento | California | Active | |
California State University-San Bernardino | ? | California State University, San Bernardino | San Bernardino | California | Active | |
China Lake | ? | NA | Ridgecrest | California | Active | |
Claremont Colleges | 1960 | Claremont Colleges | Claremont | California | Active | |
Hughes Laboratories | ? | HRL Laboratories | Malibu | California | Active | |
Humboldt State University | ? | California State Polytechnic University, Humboldt | Arcata | California | Active | |
Lawrence Livermore National Lab | ? | Lawrence Livermore National Laboratory | Livermore | California | Active | |
Loyola Marymount University | 1967 | Loyola Marymount University | Los Angeles | California | Active | |
Naval Postgraduate School | ? | Naval Postgraduate School | Monterey | California | Active | |
Orange County | 1965 | NA | Orange County | California | Active | |
Saint Mary's College of California | ? | Saint Mary's College of California | Moraga | California | Active | |
San Diego | 1948 | NA | San Diego | California | Active | |
San Francisco State University | 1960 | San Francisco State University | San Francisco | California | Active | |
San Joaquin Valley | ? | NA | San Joaquin Valley | California | Active | |
San Jose State University | ? | San Jose State University | San Jose | California | Active | |
Santa Clara University | 1967 | Santa Clara University | Santa Clara | California | Active | |
Sonoma State University | ? | Sonoma State University | Rohnert Park | California | Active | |
University of California, Merced | 2007 | University of California, Merced | Merced | California | Active | |
University of California-Irvine | 1991 | University of California, Irvine | Irvine | California | Active | |
University of California-Santa Cruz | ? | University of California, Santa Cruz | Santa Cruz | California | Active | |
Ventura County | ? | NA | Ventura County | California | Active | |
Colorado State University - Pueblo | ? | Colorado State University Pueblo | Pueblo | Colorado | Active | |
Four Corners | ? | Fort Lewis College ? | Durango | Colorado | Active | |
Mesa State College | ? | Colorado Mesa University | Grand Junction | Colorado | Active | |
Pikes Peak | 1974 | Pikes Peak | Colorado Springs | Colorado | Active | [l] |
University of Northern Colorado | ? | University of Northern Colorado | Greeley | Colorado | Active | |
Fairfield University | 2000 | Fairfield University | Fairfield | Connecticut | Active | |
Hartford | ? | ? | Hartford | Connecticut | Active | |
Olin | ? | ? | Cheshire | Connecticut | Active | |
Quinnipiac University | 1980 | Quinnipiac University | Hamden | Connecticut | Active | |
University of Bridgeport | ? | University of Bridgeport | Bridgeport | Connecticut | Active | |
University of Connecticut Health Center | ? | UConn Health | Farmington | Connecticut | Active | |
University of Hartford | 1970 | University of Hartford | West Hartford | Connecticut | Active | |
Western Connecticut State University | 1979 | Western Connecticut State University | Danbury | Connecticut | Active | |