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.
Dongping County, which belongs to Tai'an City, Shandong Province, is located in the southwest of Shandong Province, facing the Yellow River in the west and Mount Tai in the east, with a total area of 1330.44 square kilometers. In 2018, Dongping County has jurisdiction over 3 streets, 9 towns and 2 townships. By the end of 2017, Dongping County had a resident population of 763300, with a gross domestic product (GDP) of 39.653 billion yuan, of which the added value of the primary industry was 4.458 billion yuan, the secondary industry was 18.219 billion yuan, the tertiary industry was 16.976 billion yuan, and the proportion of the third industry was 11.2%. Dongping County is a "national advanced county for scientific and technological progress". Dongping Lake Scenic spot is rated as a national "4A" scenic spot. In June 2010, "Duan Gu Qiang" in Dongping County was listed as a national intangible cultural heritage.