New scholarship on southern white out-migration challenges long-held views regarding the economic difficulties experienced by Appalachian white migrants in the North. A comparison of the experiences of Appalachian white migrants and other southern white migrants during a forty-year period, using the Integrated Public Use Microdata Series files ( IPUMS ), shows that Appalachian migrants were significantly more impoverished than were other southern white migrants. As recent research suggests, migrants from the non-Appalachian South made a smooth economic transition, but migrants from the southern Appalachian region were nearly as impoverished as southern African-American migrants and international immigrants from the poorest developing countries. For these groups, the economic transition was a slow and difficult process.