Japanese Americans, per IPUMS

Japanese Americans

Eric Rauchway


July 5, 2024

IPUMS has now made available a preliminary complete-count sample—that is to say, everyone in the Census is represented in the sample—for 1950. Having both 1940 and 1950 makes it possible to look at the before-and-after for Japanese American imprisonment without trial. Here’s a preliminary look.

Three panel chart showing location by county of Japanese American population in 1930, 1940, and 1950; the increase of people in cities and East of the Rockies is pronounced between 1940 and 1950.