Jackson is the only city and county seat of Jackson County in the U.S. state of Michigan.[6] As of the 2010 census, the city population was 33,534, down from 36,316 at the 2000 census. Located along Interstate 94 and U.S. Route 127, it is approximately 40 miles (64 km) west of Ann Arbor and 35 miles (56 km) south of Lansing. Jackson is the core city of the Jackson Metropolitan Statistical Area, which includes all of Jackson County and population of 160,248.