As of the census of 2000, there were 39,636 people, 15,794 households, and 9,207 families residing in the city. The population density was 561.6/km sq (1,454.4/mi sq). There were 16,987 housing units at an average density of 240.7/km sq (623.3/mi sq). The racial makeup of the city was 81.50% White, 14.70% Black or Race (United States Census)African American, 0.38% Native American, 1.23% Asian, 0.05% Pacific Islander, 0.62% from Race (United States Census)other races, and 1.52% from two or more races. 1.55% of the population were Hispanic AmericanHispanic or Latino of any race. There were 15,794 households out of which 27.9% had children under the age of 18 living with them, 44.4% were Marriagemarried couples living together, 10.8% had a female householder with no husband present, and 41.7% were non-families. 36.1% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.90. In the city the population was spread out with 20.9% under the age of 18, 11.0% from 18 to 24, 32.1% from 25 to 44, 22.0% from 45 to 64, and 14.0% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 105.3 males. For every 100 females age 18 and over, there were 106.6 males. The median income for a household in the city was $39,628, and the median income for a family was $52,627. Males had a median income of $35,050 versus $25,521 for females. The per capita income for the city was $21,268. About 7.3% of families and 11.5% of the population were below the poverty line, including 17.1% of those under age 18 and 7.1% of those age 65 or over. Source: http://en.wikipedia.org/wiki/Jefferson_City%2C_Missouri