As of the census of 2000, there were 10,922 people, 5,016 households, and 2,678 families residing in the city. The population density was 1,026.0/km sq (2,660.2/mi sq). There were 5,266 housing units at an average density of 494.7/km sq (1,282.6/mi sq). The racial makeup of the city was 91.91% Race (United States Census)White, 0.27% Race (United States Census)Black or Race (United States Census)African American, 1.34% Race (United States Census)Native American, 1.05% Race (United States Census)Asian, 0.07% Race (United States Census)Pacific Islander, 1.66% from Race (United States Census)other races, and 3.71% from two or more races. 6.56% of the population were Hispanic AmericanHispanic or Race (United States Census)Latino of any race. Grass Valley also has a strong sense of Cornish culture and ancestry, since many people from Cornwall (in South-West England) emigrated here in the 18th and 19th centuries (see Cornish emigration). There were 5,016 households out of which 26.5% had children under the age of 18 living with them, 32.4% were Marriagemarried couples living together, 16.3% had a female householder with no husband present, and 46.6% were non-families. 39.1% of all households were made up of individuals and 20.3% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.80 people. In the city the population was spread out with 23.3% under the age of 18, 9.3% from 18 to 24, 25.0% from 25 to 44, 20.3% from 45 to 64, and 22.0% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 81.8 males. For every 100 females age 18 and over, there were 75.1 males. The median income for a household in the city was $28,182, and the median income for a family was $33,220. Males had a median income of $32,568 versus $21,915 for females. The per capita income for the city was $16,877. About 12.9% of families and 14.9% of the population were below the poverty line, including 20.0% of those under age 18 and 6.3% of those age 65 or over. Source: http://en.wikipedia.org/wiki/Grass_Valley%2C_California