Yep. itâs true. I wonât google it for you. But you can easily find the immigration statistics by year, you can find the census statistics, and there is a wonderful set of maps that show ethnic origins by county in the usa, and another by race with a dot for literally everyone. You can even find the debate over whether the country would speak english or german. Especially after the louisiana purchase, most of the âred statesâ were populated by german immigrants. the âless desirable peopleâ (meaning the catholics) arrived afterward.