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.

Jasper is a city in and the county seat of Walker County, Alabama, United States. Its population was 14,352 as of the 2010 census. Named in honor of Sergeant William Jasper, an American Revolutionary War hero, Jasper was settled around 1815 and incorporated on August 18, 1886.