Okay, here are the stats from the Robert Egan book "From Here to Fraternity" (1985)

The Schools with the Largest No. of Greek Chapters:
1. U. Illinois 77 chapters - 51 frat, 26 sor
2. Penn State 70 chapters - 51 frat, 19 sor
3. Ohio State 62 chapters - 41 frat, 21 sor
4. Cornell 61 chapters - 48 frat, 13 sor
5. Purdue 61 chapters - 45 frat, 16 sor
6. U. Michigan 55 chapters - 36 frat, 19 sor
7. U. Virginia 54 chapters - 37 frat, 17 sor
8. Indiana U. 53 chapters - 31 frat, 22 sor
9. UC-Berkeley 52 chapters - 38 frat, 14 sor
10.U. Missouri 51 chapters - 34 frat, 17 sor
(They list the top 50, but I refuse to type them all out! So there is 10 for you!)


Also:
Small schools with large percentages of Greeks (en=enrollment):
1. DePauw University 75% Greek, 2312 en.
2. Wabash College 75% Greek, 774 en.
3. Brenau College 70% Greek, 609 en.
4. Westminster Coll. 68% Greek, 647 en.
5. Transylvania U. 65% Greek, 701 en.

Yes, these stats are a bit old, but hope that it helps anyway!