People obtaining lawful permanent resident status by region or selected country of last residence, 1820 - 2015.
Yearbook of Immigration Statistics
visualization / power

200 Years of Immigration to the U.S.

A visualization of who came from where, when.
Immigration to the US has been limited by many factors, including laws such as the the Immigration Act of 1924 that completely excluded immigrants from Asia and severely limited the number of immigrants of other nationalities.
View source