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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.

Menyuan Hui Autonomous County is located in the northeast of Qinghai Province, under the jurisdiction of Haibei Tibetan Autonomous Prefecture, in the east of Haibei Tibetan Autonomous Prefecture and adjacent to Gansu Province in the east and north. It is 150 kilometers away from the provincial capital Xining and 250 kilometers away from Haiyan County, the capital of Haibei Prefecture. The total area is 6896 square kilometers. Menyuan County was established in 1929, Menyuan Hui Autonomous region was established in 1953, and changed to Menyuan Hui Autonomous County in 1955. In 2013, the GDP of Menyuan Hui Autonomous County reached 292 million yuan. Hui is the main ethnic group, accounting for about 40% of the total population, as well as Han, Tibetan, Turkish, Mongolian, Salar and other ethnic groups. The total population is 155800 (2013). The original name of Menyuan County was "Xianyuan" (Xi, m é n). Because the writing of the word "Qing" was too complicated, it was unified and simplified.
Travel Guides In Menyuan Hui Autonomous County
Travel Notes In Menyuan Hui Autonomous County