The village of Caledonia is within the township on M-37 in the southeast part of the township.
Alaska is an unincorporated community within the township on the Thornapple River at. The community had its origin with a sawmill established by William H. Brown and Rev. Eber Moffit in 1848. A post office with the name "Brownsville" was first established on December 13, 1855, but the name was changed to "North Brownsville" just a few days later on December 18 to avoid confusion with an already existing post office with that name in Cass County. It was renamed "Alaska" on December 4, 1868, undoubtedly influenced by the 1867 purchase of Alaska from Russia by the U.S. government. The post office closed on February 9, 1906.
Caledonia Station was a village founded around a depot of the Grand River Valley Railroad in 1870. It was platted that same year.
According to the United States Census Bureau, the township has a total area of, of which are land and, or 2.20%, are water. The Thornapple River flows north through the township, dividing it nearly in half. The Coldwater River enters at the southeast corner flowing east and merges with the Thornapple in the south.
Demographics
As of the 2000 census, there were 8,964 people, 3,075 households, and 2,493 families residing in the township. The population density was 255.0 per square mile. There were 3,225 housing units at an average density of 91.8 per square mile. The racial makeup of the township was 97.55% White, 0.25% African American, 0.31% Native American, 0.76% Asian, 0.03% Pacific Islander, 0.47% from other races, and 0.64% from two or more races. Hispanic or Latino of any race were 1.24% of the population. There were 3,075 households, out of which 43.3% had children under the age of 18 living with them, 71.7% were married couplesliving together, 6.9% had a female householder with no husband present, and 18.9% were non-families. 15.0% of all households were made up of individuals, and 4.1% had someone living alone who was 65 years of age or older. The average household size was 2.91 and the average family size was 3.26. In the township the population was spread out, with 31.3% under the age of 18, 6.8% from 18 to 24, 30.6% from 25 to 44, 24.1% from 45 to 64, and 7.3% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 101.0 males. For every 100 females age 18 and over, there were 99.6 males. The median income for a household in the township was $63,032, and the median income for a family was $69,836. Males had a median income of $51,843 versus $30,032 for females. The per capita income for the township was $25,710. About 1.9% of families and 2.3% of the population were below the poverty line, including 1.9% of those under age 18 and 3.7% of those age 65 or over.
