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.
Xiangtan County is located in the north of Nanyue Hengshan Mountain, the west bank of the lower reaches of the Xiangjiang River, the northern section of the Changheng Hilly Basin, between latitude 27 °20 mi 28 °05 'north and longitude 112 °25 mi 113 °03' east, Zhuzhou City and Dengkou District in the east, Hengdong County, Hengshan County and Shuangfeng County in the south, Xiangxiang City and Shaoshan City in the west, and Xiangtan City in the north. Under the jurisdiction of 15 towns, 4 townships, a total of 645 administrative villages, 14 neighborhood committees, 14 community neighborhood committees. In 2015, according to Xiangtan County township division adjustment plan, the adjustment under the jurisdiction of 3 townships and 14 towns. Xiangtan County, known as the Pearl of Central Hunan, is the hometown of Xianglian in China and the birthplace of Huxiang culture. The whole county belongs to the comprehensive reform pilot area of resource-saving and environment-friendly society (that is, national "two-oriented society") of Changsha-Zhuzhou-Xiangtan urban agglomeration.