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.
Heyang County, known as Xinguo, is located in the northeast of Guanzhong Basin in Shaanxi Province and on the west bank of the Yellow River, belonging to Weinan City, with a total area of 1437 square kilometers and a cultivated land area of 932000 mu, with a total population of 459000 (2016) in 11 towns, 1 subdistrict office and 215 administrative villages (communities). Heyang County is a national ecological demonstration county and a national pollution-free fruit production base county with an average altitude of 721m, an annual average temperature of 11.5m and a rainfall of 553mm. It is a national ecological demonstration county and a national pollution-free fruit production base county. Wheat, apple, red grape, dairy livestock, aquatic products, sweet potatoes, pigs and other characteristic agricultural products are famous in the northwest. Heyang County is located in the forefront of the western development, 108 National Highway runs through the whole territory, Xiyu Expressway passes through 8 townships of the county and runs directly to the county seat, and Xihou Railway runs from south to north.