About san francisco

San Francisco, officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California, with 815,201 residents as of 2021, and covers a land area of 46.9 square miles, 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 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

brown and gray concrete buildings during daytime photo

san francisco

united states

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tunnel

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photograph of city high-rise buildings

Golden Gate Bridge

the golden gate bridge is surrounded by fog

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san fran

buildings during daytime

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woman in black jacket holding white printer paper

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girl in blue jacket holding happy birthday greeting card

stop asian hate

violence against asian americans and pacific islanders

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a view of the golden gate bridge from below

american city

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famous view

woman in yellow pants holding white and purple happy birthday greeting card

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View of street in San Francisco, California, earthquake aftermath with man patrolling with gun.

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Block of burned buildings in San Francisco after the 1906 earthquake with fire truck spraying water on them.

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woman in blue denim jacket holding white and blue signage

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a view of the golden gate bridge from the beach

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boy in gray and green crew neck shirt holding white printer paper

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no more guns

city escape near water during daytime

alcatraz island

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