Sunnydale
Given the nature of the show, and Whedon, I'm guessing it was intentional, at the very least just tongue-in-cheek.
But I'm always a bit bothered by how Sunnydale's size just always seems to change on a whim.
At the beginning, Cordelia calls it a 'one-Starbucks-town.' Yet the body found in a locker is just 'some guy.' If you're in a town that small, you likely know everyone you go to school with, especially if Buffy's arrival was such big news to them.
Yet, didn't they mention at some point there were other high schools in town?
And then suddenly in Season 4 it's big enough for a college that draws people from all over.
Judging from the aerial shot at the end, not big enough for all that.