• San Francisco
  • Jingtai County

San Francisco (/ˌsæn frənˈsɪskoʊ/; Spanish for "Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California in the United States. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of 46.9 square miles (121 square kilometers), at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include SF, San Fran, The City, Frisco, and Baghdad by the Bay.

San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred by leading universities, high-tech, healthcare, FIRE, and professional services sectors. As of 2020, the metropolitan area, with 6.7 million residents, ranked 5th by GDP ($874 billion) and 2nd by GDP per capita ($131,082) across the OECD countries, ahead of global cities like Paris, London, and Singapore. San Francisco anchors the 13th most populous metropolitan statistical area in the United States with 4.6 million residents, and the fourth-largest by aggregate income and economic output, with a GDP of $669 billion in 2021. The wider San Jose–San Francisco–Oakland, CA Combined Statistical Area is the fifth most populous, with 9.5 million residents, and the third-largest by economic output, with a GDP of $1.25 trillion in 2021. In the same year, San Francisco proper had a GDP of $236.4 billion, and a GDP per capita of $289,990. San Francisco was ranked seventh in the world and third in the United States on the Global Financial Centres Index as of March 2022.

Jingtai County, which belongs to Baiyin City, Gansu Province, is located in the middle of Gansu Province, at the eastern end of Hexi Corridor, at the junction of Gansu, Ningxia and Mongolia provinces (regions), between 36 °43'N and 37 °38 °N and 103 °33'to 104 °43'E, with a total area of 5483 square kilometers. Jingtai County has a temperate arid continental climate. The name of the county implies the meaning of "prosperity, prosperity of the country and peace of the people". As of 2018, Jingtai County has jurisdiction over 8 towns and 3 townships, and the county government is stationed in a mountain town with a total population of 240000. The Western Han Dynasty buys Jiuyin and Guanwei County, which belongs to Wuwei County. The Qing Dynasty belongs to Gaolan and Jingyuan County of Lanzhou. Qing Dynasty Qianlong 22 years (1757) in this Hongshui Township Hongshui Hongshui County, is Gaolan County. In 1913, it was changed to Hongshui County. In the Republic of China
Travel Notes In Jingtai County