As of the census of 2000, there were 628 people, 238 households, and 178 families residing in the township. The population density was 17.6 people per square mile (6.8/km2). There were 274 housing units at an average density of 7.7/sq mi (3.0/km2). The racial makeup of the township was 93.95% White, 0.16% African American, 2.39% Native American, 0.64% Asian, 0.96% from other races, and 1.91% from two or more races. Hispanic or Latino of any race were 1.75% of the population.