According to Wikipedia (and unsurprisingly), that's technically Russian. Western Europe, perhaps?

https://en.m.wikipedia.org/wiki/List_of_languages_by_number_...

Thanks for correction. I was under the assumption Russian was second.

wow, I did not know that!

other fun fact I learned from wikipedia - "German-Americans make up the largest self-reported ancestry group within the United States accounting for roughly 49 million people and approximately 17% of the population of the US"