Spencer Township is a civil township of Kent County in the U.S. state of Michigan. The population was 3,681 at the 2000 census.GeographyAccording to the United States Census Bureau, the township has a total area of 36.7sqmi, with 35.1sqmi of land and 1.6sqmi (4.26%) of water.CommunitiesGriswold began before 1877 around a lumber mill and a shingle mill on the Grand Rapids & Indiana Railroad.DemographicsAs of the census of 2000, there were 3,681 people, 1,357 households, and 1,028 families residing in the township. The population density was 104.9 per square mile (40.5/km²). There were 1,641 housing units at an average density of 46.8 per square mile (18.1/km²). The racial makeup of the township was 96.82% White, 0.76% African American, 0.35% Native American, 0.41% Asian, 0.16% from other races, and 1.49% from two or more races. Hispanic or Latino of any race were 1.28% of the population.There were 1,357 households out of which 34.4% had children under the age of 18 living with them, 63.4% were married couples living together, 7.7% had a female householder with no husband present, and 24.2% were non-families. 18.6% of all households were made up of individuals and 6.2% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.02.
