And, where do these new Delawareans live? During this decade, Sussex County's population grew by 22.6% and Kent County's by 13.1%, but New Castle County only grew by 4.3%, which is less than one-half of one percent per year.
Given this data, it is likely that most of this net in-migration are retirees. It is important to note that Delaware has significant tax incentives for retirees (both on income and real estate) along with relatively inexpensive real estate prices. Incentives matter.
The Young and Working Age Moving South and West
With retirees relocating from the expensive Northeast, where are Delawareans moving out-of-state going? The answer to this question is a bifurcated one. A decade ago, two-thirds of our out-migration was heading to the southern states. Today the answer is more complicated.
While just under 50% of our net out-migration is still heading to states like Florida, Texas, and Georgia, another ~20% is moving to the West Coast - Oregon, Washington, and California.