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.
Gangu County, which belongs to Tianshui City, Gansu Province, is located in the southeast of Gansu Province, northwest of Tianshui City, and upstream of Weihe River. It is bordered by Qinan County and Maiji District in the east, Qinzhou District and Lixian in the south, Wushan County in the west and Tongwei County in the north. The total area is 1572.6 square kilometers. As of 2012, Gangu County has a total population of 630000. The famous specialties of Gangu County are hemp shoes, ridges, fried potatoes, Gangu pulp water surface, crisp circles and so on. The famous figures of Gangu County are Pan Qinyue, Shi Zuoshu, Gong Jianfeng, Jiang Wei, Mrs. Yin and so on. Gangu County has won the honorary titles of "hometown of National Pepper" and "hometown of Chinese Pepper". On April 28, 2019, the Gansu provincial government approved Gangu County to formally withdraw from the poverty-stricken county.