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.
Changtu County, the northernmost county in Liaoning Province, is the pilot unit of the county system of expanding power in Liaoning Province. it is a well-known agricultural county in the country, the largest peanut distribution center in Northeast China, the largest grain production base and livestock and poultry production and processing base in China. Changtu County has convenient transportation, there are Harbin-Dalian Railway, Pingqi Railway and Harbin-Dalian High-speed Railway. National Highway 102, National Highway 303 and Shen-Harbin Expressway pass through the territory. Changtu County has a strong industrial foundation. A modern industrial pattern based on the processing of building materials, chemical industry, machinery, textiles, agricultural and sideline products is taking shape. In September 2019, it was selected as a pilot county for the construction of medical community in a compact county.