Decatur County, Alabama is a former county of the state of Alabama, United States. Its name is in honor of Commodore Stephen Decatur of the United States Navy. Its county seat was Woodville.

History

Decatur County was established on December 7, 1821. In 1822, the location of Woodville was selected as its county seat, but a few years later it was found that the county did not have the constitutional number of square miles and it was abolished, its territory being divided between Madison County and Jackson County.