The vast majority of us — about 80 percent, according to the U.S. Census Bureau — speak English at home. But we are a polyglot society in which big pockets of non-English speakers dot the national landscape. Our good friends at @MetricMaps have put together a cool gif that shows where the highest concentrations of English, Spanish, Indo-European and Asian languages are spoken around the country.

Almost 13 percent of Americans over 5 years of age, a total of 37 million of us, speak Spanish at home. Not surprisingly, Spanish speakers are concentrated near the U.S. border in counties in Texas, New Mexico, Arizona and California.

More here: http://www.washingtonpost.com/blogs/govbeat/wp/2014/11/18/the-languages-we-speak-at-home-mapped-by-county/