South Carolina added 79,958 people between mid-2024 and mid-2025, a 1.5 percent gain and the fastest rate of any state. That growth lands differently in each region. The Upstate's Greenville-Anderson-Greer metro passed one million residents in 2025, and BMW's plant in Greer built 396,117 vehicles that year, more than any other BMW factory in the world. The Midlands lean on government and the Army: the Columbia metro holds about 880,000 people, and Fort Jackson trains half of all soldiers entering the Army each year.
The coast runs on visitors and new arrivals. Tourism produced a record $31 billion in statewide economic impact in 2025, $6 billion of it from hotels and vacation rentals. The Charleston metro reached about 889,000 residents and Horry County's Myrtle Beach metro about 428,000, while Hilton Head Island draws 2.5 million visitors a year and neighboring Bluffton went from 12,530 residents in 2010 to an estimated 36,807 in 2025. Along the North Carolina line, Fort Mill grew 37.2 percent from 2020 to 2023, and Lancaster County ranked fifth in the state for growth from 2024 to 2025.