Boaz is a city in Etowah and Marshall Counties in the U.S. state of Alabama. The city is named after the husband of Ruth, from the Book of Ruth in the Bible. It is part of the 'Gadsden, Alabama Metropolitan Statistical Area'. As of the 2000 census, the population of the city is 7,411. According to the 2005 U.S. Census estimates, the city had a population of 7,893.