As of the census of 2010, there were 947 people, 428 households, and 277 families living in the village. The population density was. There were 582 housing units at an average density of. The racial makeup of the village was 98.6% White, 0.1% Native American, 0.2% Asian, 0.2% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 0.3% of the population. There were 428 households, of which 24.5% had children under the age of 18 living with them, 50.5% were married couplesliving together, 10.7% had a female householder with no husband present, 3.5% had a male householder with no wife present, and 35.3% were non-families. 31.8% of all households were made up of individuals, and 17.3% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.75. The median age in the village was 48.3 years. 20.8% of residents were under the age of 18; 7.3% were between the ages of 18 and 24; 17% were from 25 to 44; 31.2% were from 45 to 64; and 23.7% were 65 years of age or older. The gender makeup of the village was 49.0% male and 51.0% female.
2000 census
As of the census of 2000, there were 1,085 people, 488 households, and 302 families living in the village. The population density was 1,005.1 people per square mile. There were 572 housing units at an average density of 529.9 per square mile. The racial makeup of the village was 99.17% White, 0.46% Native American, 0.09% from other races, and 0.28% from two or more races. 0.37% of the population were Hispanic or Latino of any race. There were 488 households, out of which 26.2% had children under the age of 18 living with them, 49.4% were married couples living together, 9.2% had a female householder with no husband present, and 38.1% were non-families. 35.2% of all households were made up of individuals, and 20.9% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.82. In the village, the population was spread out, with 24.1% under the age of 18, 5.3% from 18 to 24, 22.9% from 25 to 44, 23.8% from 45 to 64, and 24.0% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 87.0 males. The median income for a household in the village was $28,179, and the median income for a family was $35,625. Males had a median income of $29,271 versus $17,014 for females. The per capita income for the village was $16,010. About 10.3% of families and 14.6% of the population were below the poverty line, including 13.1% of those under age 18 and 23.3% of those age 65 or over.
The village was named after Lewis Cass, the governor of Michigan Territory from 1813-1831. The name has been used by the community since at least 1828, when the post office was established by Allen Hill.
