Oklahoma City (/oʊkləˌhoʊmə -/ (listen)), officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, and is the 8th largest city in the Southern United States. The population grew following the 2010 census and reached 687,725 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.
Oklahoma City's city limits extend somewhat into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside the core Oklahoma County area are suburban tracts or protected rural zones (watershed). The city is the eighth-largest in the United States by area including consolidated city-counties; it is the second-largest, after Houston, not including consolidated cities. The city is also the second largest by area among state capital cities in the United States, after Juneau, Alaska.
Qingtian County is located in the southeast of Zhejiang Province, in the middle and lower reaches of Oujiang River. It is bordered by Wenzhou, Yongjia, Nanlian and Wencheng to the east, Lishui and Jingning she Autonomous County to the west, and Jinyun to the north. The county covers a total area of 2493 square kilometers, which is known as "nine mountains, half water and half land". It is known as "the stone capital of China, Qingtian of the world". Qingtian has a long history and is known as "the hometown of stone carvings, the hometown of overseas Chinese and the hometown of celebrities". It is also the first county in house prices in China, the top ten financial counties in China, the first county in foreign exchange, and the first county in per capita deposits. Qingtian also has the world agricultural heritage-Qingtian rice-fish symbiosis system. Qingtian stone is the first of the four national stones, the stone of Nu Yi mends the sky, and the seal is the first of the three seals. In 2013, Qingtian deeply implemented the development strategy of "deepening radiation to Wenzhou, building Qingtian in the world, and building a happy hometown of overseas Chinese".