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.

Ingham County is a county located in the U.S. state of Michigan. As of the 2020 Census, the population was 284,900. The county seat is Mason. Lansing, the state capital of Michigan, is largely located within the county. Lansing is the only state capital in the United States located in a county of which it is not also the seat of government. The county is home to Michigan State University, Lansing Community College, and the Class A minor league baseball team Lansing Lugnuts. Ingham County is included in the Lansing–East Lansing, MI Metropolitan Statistical Area. It is considered to be a part of Mid Michigan.