How Atlanta Is Slowly Building America's Next Mega-City

An hour up I-85 from Atlanta, a county most people drive straight past is now one of the fastest growing in America. Between 2024 and 2025, Jackson County, Georgia, grew more than 5%, the fourth fastest rate of any U.S. county its size. Yet the Atlanta region as a whole is slowing down. Its growth rate has fallen every decade since the 1990s, and in 2024 the metro lost more Americans to other states than it gained for the first time in at least thirty years. Even so, metro Atlanta still added nearly 62,000 people that year, third most in the country behind Houston and Dallas, and its edges keep moving outward. This is the story of how a city first named Terminus became a junction that grows along every highway at once. We follow the price gradient that pushes families from the core to Jackson County and then on to Walton County. Then we follow each spoke: I-85 northeast, where Siemens is building and SK Battery is cutting jobs; I-75 northwest, where a $5 billion Hyundai and SK battery plant just opened in Bartow County; I-20 east, where Rivian’s long-delayed factory is finally rising near Social Circle; and GA 400 north, where Forsyth County is expected to double by 2050 and a $4.6 billion toll lane project means five years of construction. Finally, we look at where this leads: toll lanes around the Perimeter that won’t be finished until the 2040s, a data center boom pushing Georgia Power to expand by half, a forecast of 8.6 million people by 2050, and an I-85 corridor that may one day connect Atlanta’s sprawl to Charlotte’s. Subscribe for more documentaries about how cities grow and change. #Atlanta #Georgia #Charlanta