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  • Yanjin 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.

Yanjin County is located in the north of the Yellow River and belongs to Xinxiang City, Henan Province. It is 31 kilometers away from Xinxiang city in the west, 70 kilometers away from Zhengzhou in the south, 80 kilometers away from Xinzheng International Airport, 50 kilometers east to Kaifeng and 130 kilometers north to Anyang. Yanjin County is 45.5 kilometers from north to south and 42.5 kilometers from east to west, with a total area of 886 square kilometers. The total population is 520000 (2016). Yanjin County is the national high-quality wheat production base and the main grain and cotton production base in China. The main scenic spots in the territory are the Forest Park of the Old Road of the Yellow River, the hanging place of Tang Wei Chi Jingde-Suanzao Pavilion, the tomb of King Chen Yucheng of the Taiping Heavenly Kingdom, the provincial cultural relics Wanshou Pagoda and so on. Local snacks include Yanjin fire and so on. Famous figures include Liu Zhenyun and so on. In March 2019, it was listed as the first batch of revolutionary cultural relics protection and utilization district and county list. The second batch of national farmers
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