> Likewise there is no "little Italy" or "Chinatown" in Iowa as there are in the cities.

Maybe... Iowa's "little Italy" died out with the coal mines half a century ago, and there were very few Asian people anywhere east of the Rocky Mountains -- and essentially none outside of cities with major shipping ports.

But to this day, there's certainly a "little Netherlands" (Pella) and a "little Germany" (Amanas), a couple of "little Swedens", a "little Ireland" (Holbrook, where the graves in the churchyard name the immigration dates), and so forth in Iowa. These places are still sufficiently connected to their ethnic roots that most of the children learn great-grandma's native language in school, and the local "English" is sprinkled with borrowed words. If you count Italy as sufficiently non-American as to be evidence of a multicultural attitude, then you must surely count these other places.