Mississippi is a state in the Southern United States, with part of Mississippi's southern border formed by the Gulf of Mexico. Mississippi's western border is formed by the Mississippi River. The state has a population of approximately 3 million. Mississippi's the 32nd most extensive and the 32nd most populous of the 50 United States. Located in the center of the state, Jackson is the state capital and largest city, with a population of approximately 175,000 people. There are currently 235 Mississippi airports in our database.