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.
Longan District, which belongs to Anyang City, Henan Province, is located in the southwest of Anyang City, with a central position of about 114o30 east longitude & 36o08-#39;, north latitude & #39;. It is a new administrative district reformed on the basis of the original suburbs, with a total area of 373 square kilometers. Long'an District is located in the north warm temperate zone, belongs to the continental climate, four distinct seasons, the water temperature is suitable. As of 2017, Longan District has jurisdiction over 2 townships, 3 towns and 6 streets. The district government is stationed in the southern section of Meidong Road. As of 2017, the total population of long'an District is 283000, of which the agricultural population is 220000. In the early days of the founding of the people's Republic of China, Longan District was the fourth District of Anyang City, and it was changed to the suburbs in 1954. When the urban division of Anyang was adjusted at the beginning of 2003, Longan District was newly established on the basis of the original suburbs. There are 1.