Okemos is a census-designated place (CDP) in Ingham County in the U.S. state of Michigan. The population of the CDP was 25,121 at the 2020 census. Okemos is part of the urban area of Lansing–East Lansing, and is located nearby the campus of Michigan State University. Okemos is located mostly within Meridian Charter Township, with a small portion extending south into Alaiedon Township and east into Williamstown Township.