Others places are famous for their ethnic diversity. Racine, for example. African-Americans have lived in Racine since the Civil War. Poking around Racine County, you'll find places called Norway, Little Armenia, Polonia, Scotch Lane and The Barrio. The ethnic festivals that dot the state and fill Milwaukee's summer calendar certainly give that impression.
Truth is, Wisconsin is overwhelmingly German.
If you were to make a map of Wisconsin, then color in all census tracts in which the majority of the people who live there had claimed German as their chief ancestry on the 1990 census, you would fill in 1,159 tracts out of a possible 1,322. That makes Wisconsin the most German state in the Union. Not only that, there is no other state more dominated by a single ethnic group. Strong work ethic. Beer and brats.