 The population density was 73.0 per square mile (28.2/km²).There were 680 housing units at an average density of 30.8 per square mile (11.9/km²).The racial makeup of the township was 96.46% White, 0.50% African American, 0.19% Native American, 0.43% Asian, 0.25% from other races, and 2.17% from two or more races.