Always a breeze once I go to a music festival or bigger event and there's all the diversity with the German language. I think there are many places like that. And even in the larger metropolitan areas you can tell the difference between Cologne, Düsseldorf and the Ruhrgebiet and the people slightly to the east or north of it. At least where they grew up because all of it mixes in the cities and people will also commute 1h to work. So I think it happens in villages, cities and everywhere. It's not entirely the same, though. Seems to be more nuance here than proper dialect, but people from 3 cities away will occasionally tell me on how my grammar has some funny peculiarities.

Well if it's places, plural, then you're clear.