As of the census of 2000, there were 13,048 people, 5,215 households, and 3,749 families residing in the county. The population density was 51 people per square mile (20/km²). There were 6,017 housing units at an average density of 24 per square mile (9/km²). The racial makeup of the county was 71.71% White, 24.13% Black or African American, 0.53% Native American, 0.18% Asian, 0.06% Pacific Islander, 2.28% from other races, and 1.12% from two or more races. 3.66% of the population were Hispanic or Latino of any race.
There were 5,215 households out of which 29.50% had children under the age of 18 living with them, 53.90% were married couples living together, 14.10% had a female householder with no husband present, and 28.10% were non-families. 25.80% of all households were made up of individuals and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.95.
In the county, the population was spread out with 25.20% under the age of 18, 7.80% from 18 to 24, 24.30% from 25 to 44, 24.50% from 45 to 64, and 18.30% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 92.70 males. For every 100 females age 18 and over, there were 87.40 males.
The median income for a household in the county was $29,011, and the median income for a family was $35,326. Males had a median income of $30,917 versus $20,270 for females. The per capita income for the county was $15,612. About 14.90% of families and 18.30% of the population were below the poverty line, including 25.40% of those under age 18 and 12.90% of those age 65 or over.