Kansas City, Missouri, is a city located in the Midwestern United States. It is the largest city in the state of Missouri and the 34th-largest city in the United States. As of July 2017, Kansas City had an estimated population of 488,902. The Kansas City Metropolitan Area, which includes Jackson County, Missouri, and Johnson County, Kansas, is the 27th-largest in the United States.
The city encompasses 318 square miles (820 km2), making it the 23rd-largest city by total area in the country. It is located at the confluence of two major rivers, the Missouri River and the Kansas River, and straddles both banks of each river.