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.
Lingao County, which belongs to Hainan Province, is located in the northwest of Hainan Island. Lingao County is located in the northwest of Hainan Island, located at 19 °34 degrees north latitude, 20 °02 degrees east longitude, 109 °3 degrees east longitude. It is bordered by Chengmai County to the east, Danzhou City to the southwest, Beibu Gulf to the northwest, Qiongzhou Strait to the north, and Leizhou Peninsula across the sea. The county government is stationed in Lincheng City, 83 kilometers away from the provincial capital Haikou City. The territory is 34 kilometers wide from east to west and 47 kilometers from north to south. The administrative area covers an area of 1317 square kilometers. The county seat is 82 kilometers away from the provincial capital Haikou. It has jurisdiction over 10 towns, 1 farm (Calais Farm), 2 development zones (Golden Port Economic Development Zone, Lingaojiao Tourism and Holiday Development Zone), 176village committees and 880 natural villages with a population of 515000 (as of 2018).