The Charter Township of Caledonia is a charter township of Kent County in the U.S. state of Michigan. The population was 8,964 at the 2000 census.
The township is situated about 15 miles south-southeast of downtown Grand Rapids. The city of Kentwood is directly northwest, Cascade Charter Township is to the north, Bowne Township to the east, Gaines Charter Township to the west, and Thornapple Township in Barry County to the south.
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.
There were 3,075 households out of which 43.3% had children under the age of 18 living with them, 71.7% were married couples living 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.