Jackson is a city in the south central area of the U.S. state of Michigan, about 40 miles west of Ann Arbor and 35 miles south of Lansing. It is the county seat of Jackson County. As of the 2010 census, the city population was 33,534, down from 36,316 at the 2000 census. Served by Interstate 94, it is the principal city of the Jackson Metropolitan Statistical Area, which includes Jackson County and has a population of 160,248.
Founded in 1829, it was named after President Andrew Jackson. By the late 19th century, it had developed as a railroad hub and was known as the crossroads of Michigan. By 1910 it had strong manufacturing of a variety of automobiles and parts and was also a center of corset manufacturing into the 1920s. As an industrial city, it attracted numerous migrants from the American South, both white and black, and European imigrants who were seeking better economic opportunity. The first state prison was built here and by 1882 had developed as the largest walled prison in the world, containing both factory facilities and farmland. A new prison was built in 1934 north of the city limits.