Compared to Europe, it certainly is.
From a merely linguistic viewpoint, in North America there's English and Spanish (Ok, and native american languages, but they're really not much spoken). In Western and Northern Europe, there's French, Italian, Dutch, German, Swedish, Danish, Norwegian, and Finnish.
The thing is, identity is a matter of contrast.
See this : http://squid314.livejournal.com/306048.html
because a language is not much spoken, it doesn't count?
A langage that isn't much spoken is one you're much less likely to encounter.
I neglected them because they're numerically negligible, and because if I had cited all native languages in the United State, I should then, too, have procedeed to cite all minority languages from Western Europe, which are more widely spoken.
There are, for instance, 13 million native speakers of Bavarian. By comparison, there's less than 3 millions native americans in the United States.
I could have been more pedantic, but for brevity's sake, I decided not to go too much into details.
My point stands.