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.
Chenghai District is under the jurisdiction of Shantou City, Guangdong Province. it is located in the east of Guangdong Province, at the mouth of Hanjiang Delta, Raoping County of Chaozhou City in the northeast, Chaozhou City in the northwest, Longhu District of Shantou City in the southwest, and Nanao County in the southeast. The geographical coordinates are between longitude 116 °54, latitude 23 °23, east-west width 22 km, north-south length 27.85 km, and total area 378.35 square kilometers. By the end of 2017, Chenghai District had jurisdiction over 8 towns and 3 streets, with 137 village committees and 47 community neighborhood committees, with a registered population of 797000. Mainly Han nationality, there are 43 ethnic minorities, most of which are Zhuang, Miao and Buyi. It has always been an important transportation hub in eastern Guangdong, southwestern Fujian and southern Jiangxi.