Chapters
Alpha Chapter (Syracuse)
November 11, 1874
Beta Chapter (Michigan)
June 7, 1882
Gamma Chapter (Wisconsin-Madison)
November 14, 1885
Delta Chapter (Boston)
April 22, 1887
Epsilon Chapter (Northwestern)
October 13, 1888
Zeta Chapter (Goucher)
November 24, 1893
Eta Chapter (California-Berkeley)
April 29, 1894
Theta Chapter (Denver)
December 28, 1897
Iota Chapter (Columbia)
November 16, 1901
Kappa Chapter (Minnesota-Twin Cities)
May 23, 1902
Lambda Chapter (University of Washington)
May 17, 1903
Mu Chapter (Stanford)
May 6, 1905
Nu Chapter (Oregon)
December 18, 1908
Xi Chapter (Idaho)
February 3, 1910
Omicron Chapter (Illinois at Urbana-Champaign)
May 24, 1913
Pi Chapter (Nebraska-Lincoln)
June 22, 1914
Rho Chapter (Iowa)
June 15, 1915
Sigma Chapter (Kansas)
October 9, 1915
Tau Chapter (Colorado State)
October 16, 1915
Upsilon Chapter (Hollins)
June 1, 1916
Phi Chapter (Washington University)
February 23, 1917
Chi Chapter (Oregon State)
April 26, 1918
Psi Chapter (Oklahoma)
September 13, 1918
Omega Chapter
December 21, 1918
Alpha Alpha Chapter (Toronto)
October 30, 1919
Alpha Beta Chapter (North Dakota)
June 16, 1920
Alpha Gamma Chapter
May 14, 1921
Alpha Delta Chapter (Missouri-Columbia)
May 20, 1921
Alpha Epsilon Chapter (Arizona)
April 29, 1922
Alpha Zeta Chapter (Texas-Austin)
May 29, 1922
Alpha Eta Chapter (Ohio Wesleyan)
November 10, 1923
Alpha Theta Chapter (Vanderbilt)
June 25, 1924
Alpha Iota Chapter (California-Los Angeles)
June 25, 1924
Alpha Kappa Chapter (Manitoba)
June 5, 1925
Alpha Lambda Chapter (British Columbia)
April 28, 1928
Alpha Mu Chapter (Rollins)
June 9, 1928
Alpha Nu Chapter (Wittenberg)
June 8, 1929
Alpha Xi Chapter (Southern Methodist)
September 21, 1929
Alpha Omicron Chapter (North Dakota State)
February 1, 1930
Alpha Pi Chapter (West Virginia)
April 18, 1930
Alpha Rho Chapter (Birmingham-Southern)
September 6, 1930
Alpha Sigma Chapter (Randolph-Macon Women's)
September 13, 1930
Alpha Tau Chapter (McGill)
September 26, 1931
Alpha Upsilon Chapter (Penn State)
May 21, 1932
Alpha Phi Chapter (Colorado College)
October 15, 1932
Alpha Chi Chapter (William & Mary)
January 14, 1933
Alpha Psi Chapter (Lake Forest)
May 19, 1934
Alpha Omega Chapter (Western Ontario)
October 24, 1936
Beta Alpha Chapter (Southern California)
September 24, 1938
Beta Beta Chapter (Maryland)
October 23, 1940
Beta Gamma Chapter (Bowling Green)
October 23, 1943
Beta Delta Chapter (Michigan State)
June 3, 1944
Beta Epsilon Chapter (Miami-Ohio)
April 12, 1947
Beta Zeta Chapter (Kent State)
October 24, 1947
Beta Eta Chapter (Bradley)
April 3, 1948
Beta Theta Chapter (San Jose State)
April 24, 1948
Beta Iota Chapter (Idaho State)
October 22, 1949
Beta Kappa Chapter (Arizona State)
December 3, 1949
Beta Lambda Chapter (San Diego State)
October 15, 1949
Beta Mu Chapter (Florida State)
April 29, 1950
Beta Nu Chapter (Vermont)
September 15, 1950
Beta Xi Chapter (Ohio State)
April 28, 1951
Beta Omicron Chapter (Oklahoma City)
November 3, 1951
Beta Pi Chapter (Indiana State)
September 14, 1952
Beta Rho Chapter (Colorado-Boulder)
March 14, 1954
Beta Sigma Chapter (Washington State)
March 5, 1955
Beta Tau Chapter (Texas Tech)
March 20, 1956
Beta Upsilon Chapter (Kansas State)
March 23, 1957
Beta Phi Chapter (Indiana)
November 16, 1957
Beta Chi Chapter (Wichita State)
February 1, 1958
Beta Psi Chapter (Oklahoma State)
February 8, 1958
Beta Omega Chapter
February 15, 1958
Gamma Alpha Chapter (Memphis)
March 15, 1958
Gamma Beta Chapter (Gettysburg)
February 21, 1959
Gamma Gamma Chapter (Wisconsin-Milwaukee)
March 19, 1960
Gamma Delta Chapter (Wyoming)
April 15, 1961
Gamma Epsilon Chapter (Puget Sound)
April 29, 1961
Gamma Zeta Chapter (East Texas A&M)
March 3, 1962
Gamma Eta Chapter (California State-Long Beach)
March 10, 1962
Gamma Theta Chapter (University of the Pacific)
February 9, 1963
Gamma Iota Chapter (Midwestern State)
March 16, 1963
Gamma Kappa Chapter (Nebraska-Kearney)
May 11, 1963
Gamma Lambda Chapter (Louisiana State)
March 14, 1964
Gamma Mu Chapter (Minnesota State-Moorhead)
April 26, 1964
Gamma Nu Chapter (Lamar)
February 20, 1965
Gamma Xi Chapter (Tennessee-Knoxville)
May 16, 1965
Gamma Omicron Chapter (Kentucky)
January 11, 1966
Gamma Pi Chapter (Minnesota State-Mankato)
February 5, 1966
Gamma Rho Chapter (Wisconsin-Oshkosh)
May 14, 1966
Gamma Sigma Chapter (Western Michigan)
January 13, 1968
Gamma Tau Chapter (St. Louis)
November 11, 1967
Gamma Upsilon Chapter (Drake)
February 17, 1968
Gamma Phi Chapter (Auburn)
May 4, 1968
Gamma Chi Chapter (Texas State-San Marcos)
February 3, 1968
Gamma Psi Chapter (Northern Iowa)
November 23, 1968
Gamma Omega Chapter (Wisconsin-Platteville)
March 29, 1969
Delta Alpha Chapter (Wisconsin-River Falls)
May 3, 1969
Delta Beta Chapter (Boise State)
February 21, 1970
Delta Gamma Chapter (Nebraska-Omaha)
March 7, 1970
Delta Delta Chapter (California State-Fullerton)
April 3, 1971
Delta Epsilon Chapter (Texas Wesleyan)
April 28, 1973
Delta Eta Chapter (California-Irvine)
January 19, 1974
Delta Theta Chapter (California Polytechnic State)
January 18, 1975
Delta Iota Chapter (Purdue)
April 19, 1975
Delta Kappa Chapter (Lehigh)
January 31, 1976
Delta Lambda Chapter (California-Riverside)
January 24, 1976
Delta Mu Chapter (Rutgers)
April 23, 1977
Delta Nu Chapter (Missouri State)
November 12, 1977
Delta Xi Chapter (Bucknell)
December 2, 1978
Delta Omicron Chapter (Southern Polytechnic State)
January 26, 1980
Delta Pi Chapter (Illinois State)
April 19, 1980
Delta Rho Chapter (Dickinson)
May 1, 1980
Delta Tau Chapter (Colgate)
November 14, 1981
Delta Upsilon Chapter (Georgia)
February 5, 1983
Delta Phi Chapter (California State-Bakersfield)
April 23, 1983
Delta Chi Chapter (California State-Sacramento)
May 14, 1983
Delta Psi Chapter (California-Santa Barbara)
November 19, 1983
Delta Omega Chapter (Oakland)
April 7, 1984
Epsilon Alpha Chapter (La Salle)
December 10, 1983
Epsilon Beta Chapter (Alma)
September 22, 1984
Epsilon Gamma Chapter (San Diego)
October 27, 1984
Epsilon Delta Chapter (Creighton)
February 22, 1986
Epsilon Epsilon Chapter (Union)
May 3, 1986
Epsilon Zeta Chapter (Jacksonville)
November 21, 1987
Epsilon Eta Chapter (Bridgewater State)
November 22, 1987
Epsilon Theta Chapter (Clemson)
April 9, 1988
Epsilon Iota Chapter (Christopher Newport)
April 30, 1988
Epsilon Kappa Chapter (California State-Chico)
November 12, 1988
Epsilon Lambda Chapter (Alabama)
February 4, 1989
Epsilon Mu Chapter (Loyola-New Orleans)
April 22, 1989
Epsilon Nu Chapter (Chapman)
April 29, 1989
Epsilon Xi Chapter (Rhodes)
October 28, 1989
Epsilon Omicron Chapter (California-Santa Cruz)
February 10, 1990
Epsilon Pi Chapter (George Mason)
April 28, 1990
Epsilon Rho Chapter (Stephen F. Austin State)
May 5, 1990
Epsilon Sigma Chapter (Morehead State)
January 19, 1991
Epsilon Tau Chapter (Rochester)
February 2, 1991
Epsilon Upsilon Chapter (South Dakota)
April 27, 1991
Epsilon Phi Chapter (Bentley)
December 8, 1991
Epsilon Chi Chapter (Marquette)
April 11, 1992
Epsilon Psi Chapter (Asheville)
November 21, 1992
Epsilon Omega Chapter (Miami-Florida)
April 17, 1993
Zeta Alpha Chapter (Eastern Washington)
November 13, 1993
Zeta Beta Chapter (Virginia)
April 9, 1994
Zeta Gamma Chapter (Sonoma State)
May 7, 1994
Zeta Delta Chapter (Southeast Missouri State)
November 5, 1994
Zeta Epsilon Chapter (Duquesne)
November 11, 1995
Zeta Zeta Chapter (Coastal Carolina)
April 12, 1996
Zeta Eta Chapter (Lander)
April 13, 1996
Zeta Theta Chapter (Pepperdine)
January 18, 1997
Zeta Iota Chapter (Valparaiso)
April 18, 1998
Zeta Kappa Chapter (Southern Indiana)
November 14, 1998
Zeta Lambda Chapter (Texas A&M-Corpus Christi)
February 6, 1999
Zeta Mu Chapter (St. John's)
January 22, 2000
Zeta Nu Chapter (Detroit-Mercy)
February 13, 2000
Zeta Xi Chapter (College of Idaho)
May 13, 2000
Zeta Omicron Chapter (John Carroll)
April 13, 2002
Zeta Pi Chapter (Penn State-Altoona)
March 29, 2003
Zeta Rho Chapter (Texas A&M-College Station)
February 21, 2004
Zeta Sigma Chapter (South Carolina)
March 19, 2005
Zeta Tau Chapter (Emory)
April 8, 2006
Zeta Upsilon Chapter (Texas-Tyler)
April 22, 2006
Zeta Phi Chapter (Arkansas-Forth Smith)
April 14, 2007
Zeta Chi Chapter (Texas Christian)
February 2, 2008
Zeta Psi Chapter (Texas-San Antonio)
April 5, 2008
Zeta Omega Chapter (Kennesaw State)
April 26, 2008
Eta Alpha Chapter (Lake Erie)
November 21, 2009
Eta Beta Chapter (Florida Southern)
April 10, 2010
Eta Gamma Chapter (Delaware)
May 8, 2010
Eta Delta Chapter (Grand Valley State)
December 4, 2010
Eta Epsilon Chapter (Virginia Tech)
April 30, 2011
Eta Zeta Chapter (Cincinnati)
February 4, 2012
Eta Eta Chapter (South Florida)
November 17, 2010
Eta Theta Chapter (Connecticut)
November 17, 2012
Eta Iota Chapter (Rockhurst)
April 13, 2013
Eta Kappa Chapter (Tennessee-Chattanooga)
November 2, 2013
Eta Lambda Chapter (Central Florida)
November 16, 2013
Eta Mu Chapter (Duke)
April 6, 2014
Eta Nu Chapter (James Madison)
December 7, 2014
Eta Xi Chapter (Florida)
November 1, 2015
Eta Omicron Chapter (Ohio)
November 22, 2015
Eta Pi Chapter (Quinnipiac)
December 5, 2015
Eta Rho Chapter (Nevada-Las Vegas)
April 23, 2016
Eta Sigma Chapter (Central Missouri)
November 13, 2016
Eta Tau Chapter (Colorado Mesa)
November 19, 2016
Eta Upsilon Chapter (Nicholls State)
April 8, 2017
Eta Phi Chapter (Virginia Commonwealth)
October 26, 2019
