atlanta | areacode | 404 678 470 <tsp> atlanta | areatotal | 3471 (square kilometres) <tsp> atlanta | populationdensity | 12990 (inhabitants per square kilometre) <sep> atlanta ( at-lan-tə) is the capital and most populous city of the us state of georgia it is the seat of fulton county, the most populous county in georgia, although a portion of the city extends into neighboring dekalb county with a population of 498,715 living within the city limits, it is the eighth most populous city in the southeast and 38th most populous city in the united states according to the 2020 us census 
atlanta has a population density of 1299 inhabitants per square kilometre. area codes of 404. 678 and 470. and a total area of 347.1.no information