I think this is related to the idea of, the tighter your circle of people is, the fewer strangers you see on a day-to-day basis, the more likely you're going to be conservative.
Conservatism is predicated more or less on fear: fear of change, fear of others, basically, fear of the unknown. That's why it's called "conservative": at the very least, a high share of them want to converse the way things are right now, because it's a known quantity. Better yet, they'd to go back to a bygone era, frequently that of their childhood, because for them it was a safe era with a known outcome. They want to stop the world and get off.
I also think this is why conservatives generally want to live in far-flung exurbs or, better yet, rural areas, where there is only a small circle of people just like them that they see every day, day after day. People they can feel comfortable complaining about other types of people to.
And flip side, why liberals prefer the city: there are lot of interesting new people to see and perhaps meet every day. Or at least why people in the city tend to be liberal: they're comfortable being around lots of people, including people they don't know or haven't met yet.
I understand this is basically Geopolitics 101.