My cheap rural place is on Zillow, so you can probably just use that. Pull up a map, identify a couple of large cities (St. Louis and Kansas City, for instance), find a point between them, and zoom in. Repeat until you find a spot you like. It's a really, really big country and most of it isn't urban, so there are lots of places to choose from, with a wide variety of weather conditions, population densities, and other aspects.