San Francisco At Night, California, United States

Demographics
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.