Rensselaer Polytechnic Institute (RPI)
Detailed chapter-by-chapter report is at:
http://doso.rpi.edu/update.do?artcenterkey=421
Some overall stats from the page cited above:
Fraternities 2.98
Sororities 3.26
All Greeks 3.04
All Men 3.09
All Women 3.24
All Campus 3.13
Non-Greek Men 3.13
Non-Greek Women 3.24
All Non-Greeks 3.16