Domestic Migration in the 1880 Census

Click on a state: the map will show in which counties people born in that state lived in 1880.

Made by Ben Schmidt using D3
Data from IPUMS, historical county files from ICPSR and IPUMS.
If it wasn't a state in 1880, you can't click on it.
This is just a rough stab to see patterns of migrations: I make no guarantees the absolute numbers are right.