Battle Creek is a city in the U.S. state of Michigan, in northwest Calhoun County, at the confluence of the Kalamazoo and Battle Creek rivers. It is the principal city of the Battle Creek, Michigan Metropolitan Statistical Area (MSA), which encompasses all of Calhoun County. As of the 2020 census, the city had a total population of 52,731. Nicknamed "Cereal City", it is best known as the home of WK Kellogg Co and the founding city of Post Consumer Brands.