The state of Missouri is located in the Midwestern United States bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. Missouri is the 18th most populous state with a 2009 estimated population of 5,987,580. It comprises 114 counties and one independent city. Missouri's capital is Jefferson City. The four largest urban areas are St. Louis, Kansas City, Springfield, and Columbia. Missouri was originally acquired from France as part of the Louisiana Purchase and became defined as the Missouri Territory. Part of the Missouri Territory was admitted into the union as the 24th state in August 10, 1821.