 The population density was 97.1 people per square mile (37.5/km²).There were 4,088 housing units at an average density of 119.9/sq mi (46.8/km²).The racial makeup of the township was 97.3% White, 0.8% African American, 0.3% Native American, 0.7% Asian, 0.4% from other races, and 0.5% from two or more races.