 The population density was 226.1 per square mile (87.3 square kilometers).There were 71,822 housing units at an average density of 99.6 per square mile (38.5 square kilometers).93.9% were White, 2.4% Black or African American, 0.5% Asian, 0.4% Native American, 0.7% of some other race and 2.0% of two or more races.