sentences:  The population density was 286 people per square mile (111/km²).There were 41,157 housing units at an average density of 115 per square mile (44/km²).The racial makeup of the county was 94.54% White, 1.87% Black or African American, 0.11% Native American, 1.21% Asian, 0.02% Pacific Islander, 1.01% from other races, and 1.24% from two or more races.