Sun Belt Wealth Flows See Palm Beach County Lead U.S. Migration Gains

IRS migration data show Palm Beach County, Florida, attracted more than $3 billion in adjusted gross income from households moving in from other states—the largest gain of any county—followed by Collier County; Manhattan gained the most new tax filers but lost about $922 million in AGI, illustrating that population growth and wealth growth aren’t the same. The broader pattern points to wealth flowing toward low-tax Sun Belt states like Florida and Texas, signaling a southward shift of the economic center and reshaping local tax bases.