America’s immigrant population today looks a lot different than it did 100 years ago, during the nation’s last wave of immigration. And while this may come as little surprise (a century is a long time, after all), the degree of demographic contrast is striking.
The interactive maps below are based on tabulations by Jens Manuel Kroogstad at Pew Research, using data from the 2009-2011 American Community Surveys and the 1910 Census. Birthplace is self-reported by respondents, and countries of origin and U.S. states are defined by their modern-day boundaries. Click the tabs above the map to select year.