 0.86% of the population were Hispanic or Latino of any race.According to the census of 2000, the largest ancestry groups in Clay County were African 56.3%, English 35% and Scots-Irish 4.5%.There were 8,152 households out of which 35.70% had children under the age of 18 living with them, 45.80% were married couples living together, 22.40% had a female householder with no husband present, and 27.80% were non-families.