As of the census of 2000, there were 74,563 people, 25,447 households, and 20,154 families residing in the county. The population density was 346 people per square mile (134/km2). There were 27,576 housing units at an average density of 128 per square mile (49/km2). The racial makeup of the county was 83.93% White, 13.11% Black or African American, 0.30% Native American, 0.88% Asian, 0.03% Pacific Islander, 0.49% from other races, and 1.27% from two or more races. 1.52% of the population were Hispanic or Latino of any race. 15.5% were of Irish, 15.0% German, 12.0% English, 11.5% United States or American and 7.1% Italian ancestry.