As of the census of 2000, there were 6,197 people, 2,670 households, and 1,650 families residing in the city. The population density was 650.2/km sq (1,684.7/mi sq). There were 2,985 housing units at an average density of 313.2/km sq (811.5/mi sq). The racial makeup of the city was 97.42% White, 0.11% African American, 0.50% Native American, 0.37% Asian, 0.02% Pacific Islander, 1.11% from Race (United States Census)other races, and 0.47% from two or more races. Hispanic or Latino of any race were 2.15% of the population. There were 2,670 households out of which 28.7% had children under the age of 18 living with them, 47.6% were Marriagemarried couples living together, 10.7% had a female householder with no husband present, and 38.2% were non-families. 33.8% of all households were made up of individuals and 16.8% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.89. Age distribution of the population: 24.6% under the age of 18, 7.0% from 18 to 24, 25.7% from 25 to 44, 21.9% from 45 to 64, and 20.8% who were 65 years of age or older. The median age was 40 years. The median income for a household in the city was $30,098, and the median income for a family was $37,007. Males had a median income of $28,942 versus $20,047 for females. The per capita income for the city was $15,793. About 7.9% of families and 10.3% of the population were below the poverty line, including 14.8% of those under age 18 and 6.2% of those age 65 or over. Source: http://en.wikipedia.org/wiki/Red_Oak%2C_Iowa