I'm sure there are a lot of tech workers who live in the countryside, it's just that we don't hear about them very often. We read mainly about the people in the tech centers, because that's where all the networking happens, and that's where all the journalists are.

I make a database client, and when I look at the billing addresses of my customers, I do see a lot of companies based in San Francisco; but the majority of customers are from pretty random locations all over the world.