Whitmore Lake is a census-designated place (CDP) and unincorporated community in the U.S. state of Michigan. The community spans the boundary between Green Oak Township in Livingston County and Northfield Township in Washtenaw County. The population of the CDP was 7,584 at the 2020 census.

Green Oak Charter Township is a charter township of Livingston County in the U.S. state of Michigan. As of the 2020 census, the township population was 19,539. In September 2005, the township board voted to incorporate as a charter township, becoming the second charter township in Livingston County.