San Francisco At Night, California, United States

The 2010 United States Census reported that San Francisco had a population of 805,235. The population density was 17,160 per square mile (6,632/km²). The racial makeup and population of San Francisco included: 390,387 Whites (48.5%), 267,915 Asians (33.3%), 121,744 Hispanics or Latinos (15.1%), 48,870 African Americans (6.1%), 4,024 Native Americans (0.5%), 3,359 Pacific Islanders (0.4%), 53,021 from other races (6.6%), and 37,659 from two or more races (4.7%).
The Census reported that 780,971 people (97.0% of the population) lived in households, 18,902 (2.3%) lived in non-institutionalized group quarters, and 5,362 (0.7%) were institutionalized.
There were 345,811 households, out of which 63,577 (18.4%) had children under the age of 18 living in them, 109,437 (31.6%) were opposite-sex married couples living together, 28,844 (8.3%) had a female householder with no husband present, 12,748 (3.7%) had a male householder with no wife present. There were 21,677 (6.3%) unmarried opposite-sex partnerships, and 10,384 (3.0%) same-sex married couples or partnerships. 133,366 households (38.6%) were made up of individuals and 34,234 (9.9%) had someone living alone who was 65 years of age or older. The average household size was 2.26. There were 151,029 families (43.7% of all households); the average family size was 3.11.
The population was spread out with 107,524 people (13.4%) under the age of 18, 77,664 people (9.6%) aged 18 to 24, 301,802 people (37.5%) aged 25 to 44, 208,403 people (25.9%) aged 45 to 64, and 109,842 people (13.6%) who were 65 years of age or older. The median age was 38.5 years. For every 100 females there were 102.9 males. For every 100 females age 18 and over, there were 102.8 males.