The US South is growing fast. Over the next 20 years, its population will grow more than 28 million, almost as much as the rest of the US combined. Much of this population growth will be natural but a significant proportion will be driven by migration flows – both people moving to the South from other regions within the US, and people moving to the US from abroad.Why are people in the US moving to the South? Which states are they moving from? How important is migration from abroad for the US as a whole? Will some states experience higher foreign migrant inflows than others? Finally, what does the rise of the South mean for commodity demand?