As of the census of 2000, there were 11,971 people, 4,569 households, and 3,367 families residing in the county. The population density was 32 people per square mile (12/km²). There were 5,121 housing units at an average density of 14 per square mile (5/km²). The racial makeup of the county was 89.32% White, 8.75% Black or African American, 0.15% Native American, 0.17% Asian, 0.03% Pacific Islander, 0.87% from other races, and 0.71% from two or more races. 1.66% of the population were Hispanic or Latino of any race.
There were 4,569 households out of which 33.50% had children under the age of 18 living with them, 58.70% were married couples living together, 11.60% had a female householder with no husband present, and 26.30% were non-families. 23.00% of all households were made up of individuals and 11.10% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.05.
In the county the population was spread out with 26.60% under the age of 18, 8.70% from 18 to 24, 28.40% from 25 to 44, 22.40% from 45 to 64, and 14.00% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 94.80 males. For every 100 females age 18 and over, there were 92.70 males.
The median income for a household in the county was $29,718, and the median income for a family was $36,043. Males had a median income of $28,502 versus $20,340 for females. The per capita income for the county was $15,462. About 14.70% of families and 17.20% of the population were below the poverty line, including 21.90% of those under age 18 and 22.00% of those age 65 or over.