The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Jiayu County, the ancient name of Shayangbao, gets its name from the meaning of "Jiayu in the south of the Book of songs". It is a county under the jurisdiction of Xianning City, Hubei Province, located in longitude 113 °39mm east and latitude 29 °48mm. It is located on the south bank of the middle reaches of the Yangtze River, bordering Wuhan to the north, Chibi to the south, Xianning to the east and Honghu to the west, and is an important part of Wuhan city circle. Jiayu County has a narrow terrain, 85 kilometers long and 5.7 kilometers wide, with a total area of 1017 square kilometers in 2016, including a land area of 712 square kilometers and a water area of 305 square kilometers. It has jurisdiction over 8 towns with a total population of 366577 (2018). Jiayu County is the first batch of areas open to the outside world and the Yangtze River economic belt.