Michigan's 5th congressional district is a United States congressional district in the Lower Peninsula of Michigan. It includes all of Branch, Cass, Hillsdale, Jackson, Lenawee, Monroe, and St. Joseph counties, southern Berrien County, most of Calhoun County, and far southern Kalamazoo County. The district is represented by Republican Tim Walberg.

Branch County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 44,862. The county seat is Coldwater. As one of the "cabinet counties" it was named for the U.S. Secretary of the Navy John Branch under President Andrew Jackson. The county was founded in 1829, and was organized in 1833.