People in my neighborhood tend to be loud, especially on weekends. Weekends are a weird beast here in Chico. In the so-called "student ghetto," students seem to start loosening up on Wednesday night and are in full swing Thursday, Friday and Saturday nights.
For some reason, people walking around at 2 in the morning think they have to yell to be heard. They also like yelling "Woooo!" at random intervals. Needless to say, it can be a triffle annoying.
However, I think one reason why things are pretty noisy here is that the sound seems to carry. I can hear people singing karaoke, badly, at Madison Bear Garden eight blocks away. The blocks are short here -- the distance is probably only four-tenths of a mile.
earplugs, baby. or move further away from campus! i used to live sandwiched between a frat and and sorority, and when people weren't drunk and yelling, they were singing a cappella REALLY badly (apparently the frat pledges had to serenade sorority girls in what was purported to be harmony, though it certainly didn't sound that way).
btw, I'm assuming you know about this already, but here's the link anyways.
http://www.cnn.com/2005/SHOWBIZ/05/17/showbuzz/index.html#2