 The population density was 48.5 per square mile (18.7/km2).There were 643 housing units at an average density of 27.0 per square mile (10.4/km2).The racial makeup of the township was 93.78% White, 0.17% African American, 2.25% Native American, 0.09% Asian, 0.09% from other races, and 3.63% from two or more races.