 The 16,576 housing units averaged 18 per square mile (7/km²).The racial makeup of the county was 78.24% White, 17.81% Black or African American, 0.42% Native American, 0.32% Asian, 0.03% Pacific Islander, 2.04% from other races, and 1.15% from two or more races.About 3.89% of the population was Hispanic or Latino of any race.