| CHAPTER | INSTITUTION | CHARTER DATE |
|---|---|---|
| ALPHA | University of Texas, Austin | 1920 |
| GAMMA | University of Kansas | 1922 |
| BETA | University of Oklahoma | 1922 |
| DELTA | University of Kentucky | 1923 |
| OMICRON | Ohio State University | 1923 |
| EPSILON | University of California, Los Angeles | 1923 |
| ETA | Stanford University | 1925 |
| ZETA | Southern Methodist University | 1925 |
| THETA | Louisiana Sate University | 1926 |
| IOTA | University of California, Berkeley | 1926 |
| CHAPTER | INSTITUTION | TOTAL INITIATES | CHARTER DATE |
|---|---|---|---|
| BETA OMICRON | Rutgers University, New Brunswick | 4503 | 1953 |
| BETA PSI | American University | 3843 | 1954 |
| ALPHA EPSILON | Emory University | 3418 | 1938 |
| EPSILON | University of California, Los Angeles | 3312 | 1923 |
| ALPHA | University of Texas, Austin | 3240 | 1920 |
| DELTA ETA | Georgetown University | 3222 | 1961 |
| ALPHA ZETA | University of Maryland | 3138 | 1938 |
| GAMMA | University of Kansas | 2709 | 1922 |
| LAMBDA | University of Southern California | 2444 | 1927 |
| GAMMA MU | University of Illinois, Urbana-Champaign | 2125 | 1956 |
* data as of March 8, 2020