As of the census of 2000, there were 115,092 people, 45,702 households, and 27,284 families residing in the county. The population density was 189 people per square mile (73/km²). There were 50,329 housing units at an average density of 83 per square mile (32/km²). The racial makeup of the county was 74.07% White, 22.65% Black or African American, 0.24% Native American, 1.63% Asian, 0.02% Pacific Islander, 0.46% from other races, and 0.93% from two or more races. 1.43% of the population were Hispanic or Latino of any race.
There were 45,702 households out of which 29.70% had children under the age of 18 living with them, 44.10% were married couples living together, 11.80% had a female householder with no husband present, and 40.30% were non-families. 27.80% of all households were made up of individuals and 5.70% 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 3.03.
In the county the population was spread out with 23.30% under the age of 18, 22.70% from 18 to 24, 28.10% from 25 to 44, 17.80% from 45 to 64, and 8.10% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 96.90 males. For every 100 females age 18 and over, there were 95.20 males.
The median income for a household in the county was $30,952, and the median income for a family was $46,781. Males had a median income of $33,598 versus $23,228 for females. The per capita income for the county was $17,158. About 11.10% of families and 21.80% of the population were below the poverty line, including 16.30% of those under age 18 and 12.00% of those age 65 or over.