If there was some good standard survey on cultural views, you could compare geo regions on the summary stats of their responses, and cluster them. But you'd need a _huge_ number of responses to get good county-level data. And then I think we'd expect to see lots of county-to-county differences reflecting the urban-rural contours, immigration differences tied to industry, etc, rather than these big, uninterrupted regions. E.g. I would think King County, WA and Alameda County, CA have a lot more in common with each other than either does with Del Norte County, CA.