Carbon Hill is a city in Walker County, Alabama, United States. It incorporated in February 1891. At the 2010 census the population was 2,021, down from 2,071 in 2000.

Walker County is a county located in the central portion of the U.S. state of Alabama. As of the 2020 census, the population was 65,342. Its county seat is Jasper. Its name is in honor of John Williams Walker, the first U.S. senator elected from Alabama.