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  • Sansha

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.

Sansha City is one of the four prefecture-level cities in Hainan Province. Established in 2012 with the cancellation of the offices of the Xisha Islands, Nansha Islands and Zhongsha Islands in Hainan Province, it is located in the central and southern part of the South China Sea and Hainan Province, and has jurisdiction over the islands and reefs and sea areas of the Xisha Islands, Zhongsha Islands and Nansha Islands, with a total area of more than 2 million square kilometers, of which the land area is more than 20 square kilometers (including southwest sand-filled land). By 2015, Sansha City had jurisdiction over 4 administrative districts (work committee and management committee) and 10 communities, with a resident population of more than 2500 (excluding resident military and police) and a registered population of 448. The municipal government is stationed on Yongxing Island in Xisha. Sansha City is the southernmost prefecture-level administrative region in China, and it is also the city with the largest total area, the smallest land area and the least population.
Airport In Sansha - Sansha Yongxing Airport
Sansha Yongxing Airport (Sansha Yongxing Airport, IATA: XYI, ICAO: ZJYX), located in the southeast of Yongxing Island, Yongxing Town, Xisha District, Sansha City, Hainan Province, China, about 800 meters west of the Sansha Municipal People's Government, is a 4C-level military and civilian shared airport   .
In April 1991, the military Yongxing Island Airport was completed and opened to navigation; in 2012, Hainan Province applied to renovate and expand the Yongxing Island Airport into a military-civilian airport; on December 22, 2016, Sansha Yongxing Airport opened civil aviation business charter flights     .
As of December 2016, the terminal building of Sansha Yongxing Airport covers an area of ​​about 3,500 square meters, and the apron has 4 civil aviation parking stands; the airport runway is 3,000 meters long and 50 meters wide, and can take off and land aircraft below Boeing B737-800   ;Hainan Airlines has opened a total of 1 routes here   .
In 2021, Sansha Yongxing Airport will have a total annual passenger throughput of 36,405 passengers, a year-on-year increase of 85.0%, ranking 235th in the country; cargo and mail throughput of 200.2 tons, a year-on-year increase of 54.1%, ranking 170th in the country; sorties, a year-on-year increase of 88.1%, ranking 239th in the country   .
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