 The per capita income for the county was $19,901.About 17.8% of families and 21.2% of the population were below the poverty line, including 33.1% of those under age 18 and 17.1% of those age 65 or over.The Federal Bureau of Prisons Federal Correctional Institution, Edgefield is in the county; it is partially within the city limits of Edgefield, and partially in an unincorporated area.