I've always been aware of German demographics in the US, although I grew up in Minneapolis, so I'm familiar with the northern tier of states. And they're obviously not all progressive by a long shot - there are plenty of old angry white people voting republican in Nebraska, Kansas, and the states bordering the south. I think the German influence is in large part responsible for why I feel at home in the Bay Area after growing up in Minneapolis. Boston I could not handle - it's a blue state in the sense that in believes in funding a public sector, but socially it's (to me shockingly) conservative and steeped in social class as a prime form of identity.

you are the media you consume.