That's the strange thing of it all. I'm not necessarily in Los Angeles proper, but I'm in a suburb and am fine driving downtown. There theoretically shouldn't be a better place to find some 20's people interested in various geek/tech content. I'm sure the groups are there, but I'm not sure where to look.
The only better place in theory is up north in Silicon Valley. But I'm not sure if I want to move and drastically up my cost of living in the process.