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.
Yuci, known as Weiyu in ancient times, is located in Taiyuan Basin in central Shanxi, bordered by Shouyang County and Heshun County in the east, Qingxu County in the west, Taigu District in the south and Taiyuan City in the northwest. Yuci District is the political, economic and transportation center of Jinzhong City, covering an area of 1328 square kilometers. It is known as the "provincial capital gateway". Yuci was called "Tushui" and "Wei Yu" in the Spring and Autumn period and "Yuci" in the warring States period. Yuci District was set up in 1948 and Yuci City in 1954. On September 24, 1999, Yuci City was revoked and renamed as Yuci District, Jinzhong City. It has jurisdiction over 9 streets, 6 towns and 4 townships, including 127 communities and 272 administrative villages. City flower rose, city tree Robinia pseudoacacia. Yuci is one of the top ten counties and cities with comprehensive indicators in Shanxi Province, a national ecological demonstration area and a national literature.