I admit that one of the reasons I love living in the PNW (the Western half, at least) is that we tend to be socially standoffish. We're exceptionally polite and compassionate, but not overtly friendly. It takes quite a long time to get a native (or near-native, like m'self) to warm up enough to socialize with regularly, and get close to. But the benefit of that is that once you do make it past the polite smiles and handshakes, the friendship you do get out of it is deeper and far more sincere than you might find elsewhere.
See, people are always talking about how legendarily friendly people are in the South and Midwest. They talk about how folks will bring casseroles to a new neighbor, chitchat in line at the grocery store, etc. People coming here from those environs tend to describe our local social customs as cold, at best, and perhaps even rude. (Our habit, for instance, of not RSVPing to social events until the last possible moment.)
But the difference is that the friendliness one tends to find in those other places only goes so far, because it's a custom borne of the safety of sameness.
( Diversity counts )
So, yes, it's easier to feel isolated living here than it might be for people who easily fit in with the majority elsewhere. But the benefit is that the friendships we make here are much more satisfying than an insincere hug from some stranger in Texas might be. I've heard us described as the Northwest Mafia, and that's not entirely inaccurate. It's a damn hard time getting into a "family" but once you're in, you're in for life. Granted that if you screw up, that life's pretty damned short, but still. ;)
( * )