The estimated population of San Francisco in the year 2009 was 815,358, according to the U.S. Census Bureau.[9] Separately, the California Department of Finance estimated the population at 856,095, as of January 1, 2010.[130] With over 17,000 people per square mile, San Francisco is the second-most densely populated major American city (among cities greater than 200,000 population).[13] San Francisco is the traditional focal point of the San Francisco Bay Area and forms part of the San Francisco-Oakland-Fremont Metropolitan Statistical Area and the greater San Jose-San Francisco-Oakland Combined Statistical Area (CSA) whose population is over seven million, making it the fifth largest in the United States as of the 2000 Census.[131]
Like many larger U.S. cities, San Francisco is a minority-majority city, as non-Hispanic whites comprise less than half of the population. The 2006–2008 American Community Survey estimated that 45.1% of the population was made up of non-Hispanic whites.[132] Asians of any nationality make up 31.3% of the population with those of Chinese birth or descent constituting the largest single ethnic group in San Francisco at about one-fifth of the population. Hispanics of any race make up 14.0% of the population. San Francisco's African American population has declined in recent decades, from 13.4% in 1970 to 7.3%.[132] The current percentage of African Americans in San Francisco is similar to that of the state of California;[132] conversely, the city's percentage of Hispanic residents is less than half of that of the state. Native San Franciscans form a relatively small percentage of the city's population: only 37.7% of its residents were born in California, while 25.2% were born in a different U.S. state. More than a third of city residents (35.6%) were born outside the United States.
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