Jackson, the name of numerous towns and geographical districts in the United States, the chief of which are: - (1) A large county in the N.E. of Alabama, from the fertile soil of which cotton, wheat, Indian corn, and various kinds of grass are raised. (2) A city in Michigan, capital of a county of the same name. It is the terminus of several railways, and contains the State prison. (3) The capital of the State of Mississippi, 183 miles N. of New Orleans. It contains the State library and a State institution for the deaf and dumb. Large quantities of cotton are shipped from it every year. (4) The capital of Madison county, Tennessee, 90 miles E.N.E. of Memphis. It is the seat of a Baptist university, and exports cotton.