There are only seven states whose most common language other than English is not Spanish. But when you take español out of the mix, things get a lot more interesting. And surprising, at least for me – I would have thought Chinese would show up more often, and German and French less.
See the Slate article this map comes from for more maps, of the most commonly spoken Native American, Scandinavian, Indo-Aryan and African languages state by state. America is truly a polyglot paradise, so much richer for all the languages we speak. (And by ‘we’ I refer to us collectively, since we all know that I’m the sad sack who only really speaks English.)