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.
Wuzhong City, located in the middle of Ningxia, was originally the resident of Gu Lingzhou City and Jinji County, located in the hinterland of Ningxia Plain, high in the south and low in the north, and belongs to the arid and semi-arid climate area in the middle temperate zone. The city has a total area of 21400 square kilometers and has jurisdiction over two districts, one city and two counties. By the end of 2018, the total resident population of Wuzhong City was 1.4154 million, an increase of 11600, or 0.83%, over the end of last year. According to the annual report of the Public Security Bureau, the total registered population at the end of the year was 1.4378 million. Wuzhong City has been an important passage of the Silk Road since ancient times, an important node city of the New Silk Road Economic Belt, and a regional trade city along the New Eurasian Continental Bridge. The domestic road network is dense and convenient, with 4 railways and 5 highways running through the city area, Wuzhong-Zhongwei intercity railway and Yinxi high-speed railway Wuzhong hub station.