Ceresco is a small unincorporated community in Calhoun County in the U.S. state of Michigan. Ceresco is situated on the Kalamazoo River approximately five miles west of downtown Marshall. It is on the boundary between Marshall Township and Emmett Charter Township at 42°16′19″N 85°03′41″W / 42.27194°N 85.06139°W / 42.27194; -85.06139. Ceresco has a post office with ZIP Code 49033. The ZIP Code area serves portions of west and southwest Marshall Township, southeast Emmett Charter Township, northwest Fredonia Township, and a large portion of Newton Township.