As of the census of 2000, there were 375 people, 175 households, and 133 families residing in the township. The population density was 15.2 people per square mile (5.9/km²). There were 650 housing units at an average density of 26.4/sq mi (10.2/km²). The racial makeup of the township was 98.40% White, 0.53% Native American, 0.27% Asian, 0.27% Pacific Islander, and 0.53% from two or more races. Hispanic or Latino of any race were 1.07% of the population.

There were 175 households out of which 12.0% had children under the age of 18 living with them, 73.7% were married couples living together, 0.6% had a female householder with no husband present, and 24.0% were non-families. 18.9% of all households were made up of individuals and 8.0% had someone living alone who was 65 years of age or older. The average household size was 2.14 and the average family size was 2.37.

In the township the population was spread out with 12.3% under the age of 18, 2.9% from 18 to 24, 13.6% from 25 to 44, 41.6% from 45 to 64, and 29.6% who were 65 years of age or older. The median age was 57 years. For every 100 females there were 119.3 males. For every 100 females age 18 and over, there were 113.6 males.

The median income for a household in the township was $36,979, and the median income for a family was $43,500. Males had a median income of $35,208 versus $25,833 for females. The per capita income for the township was $21,022. None of the families and 3.4% of the population were living below the poverty line, including no under eighteens and 6.4% of those over 64.