sentences:  The population density was 176.1 people per square mile (109.4/km²).There were 37,659 housing units at an average density of 79.9 per square mile (49.6/km²).The racial makeup of the county was 90.24% White, 4.92% Black or African American, 0.52% Asian, 0.31% Native American, 0.03% Pacific Islander, 2.47% from other races, and 1.51% from two or more races.