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.
Yongji County is one of the five counties under the jurisdiction of Jilin City, Jilin Province. It is located between longitude 125 °48 "9" ~ 126 °40 "1" east and latitude 43 °18 "7" ~ 43 °35 "00" north. It is located in the central and eastern part of Jilin Province, bordering Fengman District of Jilin City in the east, Huadian and Panshi in the south, Shuangyang District in Changchun City across the Yinma River in the west, and Jiutai City, Chuanying District in Jilin City and Qianerdao Township in Fengman District in the north. It is 20 kilometers away from the main city of Jilin City. At the end of 2011, Yongji County had jurisdiction over 7 towns, 2 townships and 2 development zones. In 2013, Yongji County has a total area of 2625 square kilometers and a total population of 420000. Yongji County has Beida Pot Ski Resort, one of the first national AAAA scenic spots in China. On October 22, 2018, Yongji County was selected for 2018.