West campus is where 98% of the Greek Houses are located, and is about 99% students, not all of whom are Greek, obviously, though a LOT of Greek students live in West Campus, in house or in apartments. Here's the greek house map:
http://deanofstudents.utexas.edu/gle...LEhousemap.pdf
And the laws aren't exactly 'fair' and do have the obvious aim of affecting Greeks more then anyone else - I remember a story about a meeting that was held to inform fraternities of the new regulations and the whole registering 'gatherings' with 50+ people thing. One guy apparently asked if he needed to register weekly chapter dinners to which he was told that "obviously those sorts of things don't count." rediculous.