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.
Antu County is a county under the jurisdiction of Yanbian Korean Autonomous Prefecture, which is located in the east of Jilin Province, the southwest of Yanbian Korean Autonomous Prefecture, bordering the Democratic people's Republic of Korea in the south, and the center of "Northeast Asia Tourism Circle" and the hinterland of "Northeast Asia Economic Cooperation Circle" in the north. It is located between 127th °48km east longitude and 42o 01km north latitude. It covers an area of 7438 square kilometers, with a total population of 209439 (2014), of which the Korean nationality accounts for 20.9% of the total population of the county. Antu belongs to the continental monsoon climate, the temperature increases gradually from south to north, and the precipitation decreases gradually. The annual average temperature is 2.2 °in the south, and the average annual precipitation is 669.7 mm in the south and 594.7 mm in the north. In 2013, Antu County