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.
Yajiang County, which belongs to Ganzi Prefecture of Sichuan Province, is located in the south of Ganzi Tibetan Autonomous Prefecture of Sichuan Province, with latitude 29 °03 in north and 101 °26 in longitude in east, Kangding County in the east, Muli County in Liangshan Prefecture in the south, Litang County in the southwest, Daofu County and Xinlong County in the north. Yajiang County was once one of the important ferries of the Yalong River. Yajiang County is located in the hilly mountainous area of northwest Sichuan, high in the north and low in the south, and extremely alpine landform in the southwest, more than 5000 meters above sea level. By the end of 2011, Yajiang County had an area of 7681.5 square kilometers and had jurisdiction over 4 districts, 1 town, 16 townships, 113 administrative villages, 1 community and 128 village groups, with a total population of 49474 at the end of 2011. In 2011, Yajiang County achieved a GDP of 5.24.