hey i just saw this thread... im a gamma phi beta at usd, and greek life is pretty big here. my house is the biggest with around 150 sisters. im not sure which sorority has the lowest membership, but im sure that none have below 100 members (there are 5 sororities - ADPi, Alpha Phi, Gamma Phi, Theta, and Kappa).
as for fraternities, well we're kind of running low on guys at our school in general, and the fraternity membership reflects that unfortuneately. i think either lambda chi or sigma chi has the highest membership with around 75 or so? its somewhere around there... the other 2 fraternities are sig ep and delta tau delta. i know the delts have somewhere around 20 members or less, and i dont know how many sig eps there are...
im actually the prvp for panhellenic at my school, and i have to revamp the whole site, but ill let yall know when i get it up and running so you can check it out!
our whole greek life page is getting re-done this summer, ugh so much work!
xoxo
chantillylace