The Shreveport–Bossier City metropolitan area, officially designated Shreveport–Bossier City by the U.S. Office of Management and Budget, or simply Greater Shreveport, is a metropolitan statistical area in northwestern Louisiana that covers three parishes: Caddo, Bossier, and DeSoto. At the 2020 United States census, the metropolitan region had a population of 393,406; its American Community Survey population was 397,590 per census estimates. With a 2010 census population of 439,000, it declined to become Louisiana's fourth largest metropolis at 394,706 residents at the 2019 census estimates. Shreveport–Bossier City is the largest economic and cultural center of North Louisiana and the wider Ark-La-Tex region. The Shreveport–Bossier City metropolitan region comprises the highest concentration of colleges and universities in the Ark-La-Tex. It is part of the I-20 Cyber Corridor linking the area to Ruston, Grambling, and Monroe, Louisiana; Dallas and Tyler, Texas; and Atlanta, Georgia. Shreveport–Bossier City's metropolitan economy is primarily based on oil and natural gas, manufacturing, casinos, restaurants, commerce, telecommunications, technology, banking, healthcare and medical research, and advertising. The largest companies operating within the metropolitan statistical area are Amazon, Calumet Specialty Products Partners, SWEPCO, AT&T Mobility and Cricket Wireless, Louisiana State University, JPMorgan Chase, Comcast, Regions Financial Corporation, Brookshire Grocery Company, and Walmart. The metropolis is one of the most religious in the United States, Shreveport being one of the top 5 most religious cities in the United States in 2016. Geography The Shreveport–Bossier City metropolitan area has a total area a little over 2,699 square miles. The area is slightly larger than the U.S. state of Delaware, and smaller than Connecticut and the U.S. territory of Puerto Rico. The U.S. Office of Management and Budget defines the metropolitan region as covering Caddo, Bossier, and DeSoto parishes. Previously, Webster Parish was considered part of Greater Shreveport; it is now part of the Shreveport–Bossier City–Minden combined statistical area. Communities of the metropolis sit at elevations over 100 feet above sea level making them primary locations for coastal retreat due to rising sea levels. The Shreveport–Bossier City area is located in the South Central United States, bordering East Texas and South Arkansas. As such, it is within the Piney Woods ecoregion. Its vegetation is classified as temperate forest and grassland. Much of the urbanized area was built on forested land, marshes, swamp, or prairie, remnants of which can still be seen throughout the metropolitan region. Communities Cities Shreveport (Principal city) Bossier City (Principal city