South Carolina (South Carolina -- SC) is located in the southeastern part of the United States. The southeastern part is the Atlantic Ocean. It has a long coastline, many excellent ports, and developed shipping. The state covers an area of 80,000 square kilometers and has a population of about 4.3 million. The capital city is Columbia City, and other cities include Charleston and Greenville. In terms of transportation, the important port is Charleston. The state's economy is dominated by manufacturing, with good development in aerospace, biology, and automobile manufacturing. Logistics development is also a feature of the state's economy. Due to the airport, railway, road and port, many companies have set up factories here, allowing goods to be exported to the world. The zip code of South Carolina is 29054, and the zip code of the capital, Columbia, is 290201-29292. Postal codes of other cities can be checked on this website.