As of the census of 2000, there were 571 people, 262 households, and 166 families residing in the township. The population density was 8.0 per square mile (3.1/km2). There were 465 housing units at an average density of 6.5 per square mile (2.5/km2). The racial makeup of the township was 96.32% White, 1.23% Native American, 0.53% Asian, 0.53% from other races, and 1.40% from two or more races. Hispanic or Latino of any race were 1.40% of the population. 30.5% were of Finnish, 13.9% German, 7.3% United States or American, 6.8% English, 6.6% Swedish and 5.6% Irish ancestry according to Census 2000.