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.
Pingyuan County is located in the northwest of Shandong Province, belonging to Dezhou City, bordering Linyi County and Yucheng City in the east and southeast, Wucheng and Xiajin in the west and southwest, Gaotang in the south and Decheng and Lingcheng in the north. Pingyuan County is located in the northwest plain of Shandong Province in the lower reaches of the Yellow River, with flat terrain and slow tilt from southwest to northeast. The climate belongs to the continental monsoon climate of the north temperate zone, with four distinct seasons and sufficient sunshine. The administrative area covers an area of 1047 square kilometers, with a total population of 470000. It has jurisdiction over 8 towns, 2 townships, 2 streets and 1 economic development zone. Pingyuan County is the hometown of "grain production base", "Beijing-Tianjin vegetable park", "strong county of animal husbandry", "big county of live pigs", "hometown of pigeons", Zhang Quanjing, an expert in the history of party building, Ren Jiyu, the late master of Sinology, Deng Youmei, a famous writer, and so on.