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Charlanta Megaregion
Country United States
State(s)North Carolina, South Carolina, Georgia

Charlanta is one of the Megaregions of the United States, and is part of the Piedmont Atlantic Megaregion. Extending along the I-85 Corridor, the region stretches from Charlotte to Atlanta. With more than $1 trillion in economic output, it is considered one of the 12 regional powerhouses that drive the Economy of the United States.[1][2] Based on projections, this region's urban areas will "expand 165%, from 17,800 km2 in 2009 to 47,500 km2 in 2060,"[3] ultimately connecting the urban sprawl of Atlanta and Charlotte.[4] Researchers have expressed concern that this urban development will create a warmer climate along the corridor and increase flood risks in the region.[3][5]

Rank Primary Statistical Area Anchor City Population (2017 est.) State(s)
1 Atlanta–Athens-Clarke County–Sandy Springs Atlanta 6,555,956 GA
2 Charlotte–Concord–Gastonia Charlotte 2,684,121 NC / SC
3 Greenville–Spartanburg–Anderson Greenville 1,460,036 SC


  1. ^ Troyer, Rebecca (March 13, 2014). "'Char-lanta' among nation's 12 regional powerhouses driving the U.S. economy". Charlotte Business Journal. Retrieved 2017-10-16.
  2. ^ Florida, Richard (March 12, 2014). "The Dozen Regional Powerhouses Driving the U.S. Economy". CityLab. Retrieved 2019-06-08.
  3. ^ a b Collazo, Jaime A.; McKerrow, Alexa; Dunn, Robert R.; Belyea, Curtis; Costanza, Jennifer; Terando, Adam J. (2014-07-23). "The Southern Megalopolis: Using the Past to Predict the Future of Urban Sprawl in the Southeast U.S". PLOS ONE. 9 (7): e102261. doi:10.1371/journal.pone.0102261. ISSN 1932-6203. PMC 4108351.
  4. ^ Burns, Rebecca (2014-07-25). "Behold the sprawl of 2060, when Atlanta and Charlotte finally converge". Atlanta Magazine. Retrieved 2019-05-29.
  5. ^ Debbage, Neil; Shepherd, J. M. (2018). "The Influence of Urban Development Patterns on Streamflow Characteristics in the Charlanta Megaregion". Water Resources Research. 54 (5): 3728–3747. doi:10.1029/2017WR021594. ISSN 1944-7973.