QUICK ANSWER
Hardeeville holds the crown — for now.
According to recent population surveys, Hardeeville — a small city along the South Carolina–Georgia line — is the Palmetto State’s fastest‑growing town. WorldPopulationReview notes that Hardeeville’s annual growth rate approaches 9.95%【856477046283282†L164-L173】, and HomeSnacks reports a staggering 264% population increase over roughly a decade【937671397632031†L70-L87】. Its location near Savannah, Hilton Head and I‑95 has made it a hub for logistics, manufacturing and retirees seeking warmer climates. While Hardeeville leads the pack, other towns like Fort Mill and Blythewood aren’t far behind, posting annual growth rates of 7–7.5%【856477046283282†L164-L173】.
This article unpacks what’s driving these surges and whether buying in a boom town makes sense for you.