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.
Jiangkou County, under the jurisdiction of Tongren area, is located in the northeast of Guizhou Province and on the slope of the transition from Guizhou Plateau to Xiangxi hills. The geographical location is 108o 30km east longitude 109o 06km east longitude, 27o 27km north latitude, 27o 58km north latitude, 52km east-west length and 55km north-south width, with a total area of 1869 square kilometers. It is adjacent to Tongren City in the east, Cengong County in Qiandongnan Prefecture in the south, Shiqian County and Yinjiang County in the west, and Songtao Miao Autonomous County in the north. The total area is 1869 square kilometers and the total population is 237000 (2012). In 2013, Jiangkou County completed a local GDP of 2.769 billion yuan, an increase of 17% compared with 2012; the county's total financial revenue reached 240 million yuan, and public revenue reached 121 million yuan. Within the territory