• San Francisco
  • Zhao'an 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.

Zhaoan County (ancient Zhangzhou capital Zhaoan County) Zhangzhou County, Fujian Province, located at the southern end of Fujian Province, at the junction of Fujian and Guangdong. It is bordered by East China Sea and South China Sea to the south, Raoping County in Guangdong Province to the west, Pinghe County to the north, Yunxiao County and Dongshan County to the east, and Raoping County and Nanao County to the west. The land area is 1293.6 square kilometers, of which the planned area of the county and urban areas is 100 square kilometers, the built area is 17.5 square kilometers, the coastline is 88 kilometers long, and the sea area is 273 square kilometers. It has jurisdiction over 16 townships (districts), 7 state-owned agricultural and forestry farms, 1 provincial industrial park and 1 Jindu industrial concentration area (marine biological industrial park) under construction, with a population of 613000, of which agricultural population accounts for more than 80%. Zhaoan County is the "hometown of calligraphy and painting" and "Chinese folk".
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