 The population density was 1,065.7 people per square mile (411.4/km²).There were 11,578 housing units at an average density of 423.7/sq mi (163.6/km²).The racial makeup of the township was 98.82% White, 0.32% African American, 0.04% Native American, 0.39% Asian, 0.02% Pacific Islander, 0.05% from other races, and 0.36% from two or more races.