Missouri is a U.S. state located in the Midwestern United States. It is the 21st most populous state, with over 6 million residents, and the 18th largest by area, making it the 18th most densely populated state. It is bordered by eight states, with its eastern neighbors being Iowa, Illinois, Kentucky, and Tennessee. The state capital is Jefferson City, and the largest city is Kansas City. Missouri is home to two major metropolitan areas, St. Louis and Springfield. Missouri is known for its natural beauty, with multiple National Parks, including the Ozark Trail, the Mark Twain National Forest, and the Mingo National Wildlife Refuge.