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.
Suizhong County is located in the southwest of Liaoning Province, belonging to Huludao City, located at the western end of Liaoxi Corridor, Xingcheng to the east, Shanhaiguan to the west, Bohai Sea to the south, Yanshan to the north, and Xingcheng to the east. it is adjacent to the seaport area, Shanhaiguan District and Azure Dragon Manchu Autonomous County of Qinhuangdao City in Hebei Province in the west and Jianchang County in the north. It is located in longitude 119 °34'E to 120 °31'E and latitude 39 °59'N to 40 °37'. The county people's government is stationed in Suizhong Town, about 350 kilometers away from the capital Beijing and Shenyang, the capital of Liaoning Province. Yang Liwei, China's first astronaut, was from Suizhong. The county has a total area of 2780 square kilometers and a total population of 640000. It has jurisdiction over 11 townships and 14 towns, including 16 ethnic groups such as Han, Manchu, Hui and Mongolia. The county's GDP reached 14.78 billion.