The village of Cass City is located within the southern part of the township.
There were 1,479 households out of which 30.0% had children under the age of 18 living with them, 53.4% were married couples living together, 11.2% had a female householder with no husband present, and 32.1% were non-families. 29.0% of all households were made up of individuals and 14.9% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.96.
In the township the population was spread out with 24.6% under the age of 18, 8.4% from 18 to 24, 25.6% from 25 to 44, 22.1% from 45 to 64, and 19.4% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 91.3 males. For every 100 females age 18 and over, there were 84.8 males.
The median income for a household in the township was $33,532, and the median income for a family was $41,053. Males had a median income of $31,840 versus $25,268 for females. The per capita income for the township was $16,837. About 9.5% of families and 11.0% of the population were below the poverty line, including 15.1% of those under age 18 and 10.7% of those age 65 or over.