Dickson is a city in Dickson County, Tennessee. It is part of the Nashville Metropolitan Statistical Area. The population was 12,244 at the 2000 census. As of the census of 2000, there were 12,244 people, 4,934 households, and 3,300 families residing in the city. There were 24,325 people in the 37055 zip code. The population density was 743.4 people per square mile (287.0/km). There were 5,280 housing units at an average density of 320.6 per square mile (123.8/km). The racial makeup of the city was 87.86% White, 8.83% African American, 0.46% Native American, 0.56% Asian, 0.77% from other races, and 1.54% from two or more races. Hispanic or Latino of any race were 1.94% of the population. There were 4,934 households out of which 34.2% had children under the age of 18 living with them, 46.5% were married couples living together, 16.8% had a female householder with no husband present, and 33.1% were non-families. 29.1% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.97. In the city the population was spread out with 27.2% under the age of 18, 9.0% from 18 to 24, 28.9% from 25 to 44, 20.6% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 86.7 males. For every 100 females age 18 and over, there were 79.8 males.