Possibly, but a big factor in immigration is jobs. The north has been industrialized for a long time, so there was opportunity there for immigrants. The south,

Possibly, but a big factor in immigration is jobs. The north has been industrialized for a long time, so there was opportunity there for immigrants. The south, focused on agriculture, wouldn't be an attractive place to settle unless you were already wealthy enough to buy land (and slaves to work the land, in those days).