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.
Qingyuan District was established by Qingyuan County in 2015. Located in the middle of Hebei Province, the triangular hinterland of Beijing, Tianjin and Shijiazhuang, belonging to Baoding City, Hebei Province. It faces Xushui District in the north, Wangdu County and Boye County in the south, Mancheng District in the west and Anxin County, Gaoyang County and Li County in the east. Qingyuan District Beijing-Hong Kong-Macao Expressway, Beijing-Guangzhou Railway, National Highway 107 and Baoheng Highway, Baoxin Highway, Baocang Highway and other provincial highways run through the whole territory. Since ancient times, it has been known as "three passes in the north and nine provinces in Nantong". In 2013, it had jurisdiction over 18 townships with a total area of 867 square kilometers and a population of 650500.