Allgood is a town in Blount County, Alabama, United States. At the 2000 census the population was 629. According to the 2005 U.S. Census estimates, the town had a population of 693. The mayor of Allgood, Alabama, is Nell Payne. The "Welcome to Allgood" sign on the outskirts of the town has an upside-down 'G'. This error has since been corrected by the mayor.