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.
Mei County, which belongs to Baoji City, Shaanxi Province, is called "Mei Wu" in ancient times. It is located at the foot of Taibai Mountain, the main peak of the Qinling Mountains, and crosses the Weihe River in the north. It is between 107 °39km east longitude and 108o 00km east longitude, and 334 °19' north latitude, with a total area of 863 square kilometers. Meixian County is one of the birthplaces of Western Zhou culture. Heavy national treasures such as Western Zhou bronzes and warring States bells have been unearthed many times. 27 Western Zhou bronzes unearthed in 2003 are known as major archaeological discoveries in the 21st century. Meixian is the hometown of celebrities such as Bai Qi, a general of the pre-Qin Dynasty, a famous official of the Shu Han Dynasty in the three Kingdoms, Wang Tao, a medical scientist in the Tang Dynasty, Zhang Zai, an ideologist in the Song Dynasty (because his theory was founded in Guanzhong, also known as Guanxue), and the Republic General Li Da. In 2018, Meixian County has jurisdiction over 1 street, 7 towns, 1 tourist area and 1 forest.