Austin,_Texas | areaCode | 512, 737 Austin,_Texas | areaOfLand | 686.0 (square kilometres) Austin,_Texas | areaTotal | 703.95 (square kilometres) Austin,_Texas | populationDensity | 1296.65 (inhabitants per square kilometre)
Austin, Texas which has the area codes of 512 and 737, has a population density of 1296.65 inhabitants per sq km. It covers an area of 703.95 sq km of which 686.0 sq km is land mass.