 The population density was 21.8 per square mile (8.4/km²).There were 455 housing units at an average density of 12.7 per square mile (4.9/km²).The racial makeup of the township was 96.80% White, 0.38% African American, 1.66% Native American, 0.13% from other races, and 1.02% from two or more races.