It's Russian here in Oregon. Never would have guessed that. I am also surprised at French in some places: the Carolinas, West Virginia. I know that Germans comprise the largest group of European immigrants to the USA but the frequency of German - 16 of the states - was unexpected.
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“If you talk to a man in a language he understands, that goes to his head. If you talk to him in his language, that goes to his heart.” - Nelson Mandela