Georgia is located in the southeastern region of the United States, with a land area of 152,488 square kilometers and a population of 9.69 million. The capital of the state is Atlanta, which is also the largest city. Other important cities are: Macon, Savannah, Augusta, Columbus, Rome and so on. The zip code abbreviated code is GA. Like other states in the United States, Georgia's agricultural development is good, and the economy is dominated by manufacturing, which produces a large number of advanced industrial products, including aircraft, ships, cars, trucks, and more. In terms of light industry, the textile industry is very developed, accounting for more than half of the total in the United States. In Atlanta, there is Lockheed Martin, a well-known arms company, and Gulfstream, an aircraft manufacturer. The production of industrial supplies requires convenient transportation. The deep-water ports here are Savannah and Brunswick, and it is also a large shipbuilding base. Georgia is home to nearly 300 airports, and Atlanta's Hartsfield International Airport is the busiest airport in the United States and the world and a major rail hub. Georgia's area code is 229 - 404 - 478 - 678 - 706 - 770 - 912, and the major city zip codes are: Atlanta 30301-39901; Columbus 31901-31999; Macon ) for zip codes 31201-31299.