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.
Haidong is a prefecture-level city under the jurisdiction of Qinghai Province, named because it is located to the east of Qinghai Lake; it belongs to the mosaic zone from the Loess Plateau to the Qinghai-Tibet Plateau, with a semi-arid continental climate; the city has a total area of 13200 square kilometers and has jurisdiction over 2 districts and 4 autonomous counties; in 2017, it has a resident population of 1.4708 million. Haidong has a long history. In the long historical evolution, Hehuang region has changed from the primitive nomadic state of "living after water and grass" to a more developed farming civilization. The people of all ethnic groups in Hehuang have jointly developed and built this land, creating a splendid history and culture. In December 2016, it was listed as the third batch of national comprehensive pilot areas for new urbanization. In 2017, the GDP of Haidong City was 43.6 billion yuan, an increase of 8.4 percent over the previous year at comparable prices. Among them, the added value of the primary industry