Southside is a city located in Etowah County in the U.S. state of Alabama. It is included in the Gadsden Metropolitan Statistical Area. It incorporated in 1957. The population was 8,412 at the time of the 2010 United States Census. Located 8 to 12 miles south of downtown Gadsden, Southside is one of the fastest-growing cities in northeast Alabama. The current Mayor, elected in 2020, is Dana Snyder.

Etowah County is a county located in the northeastern part of the U.S. state of Alabama. As of the 2020 census the population was 103,436. Its county seat is Gadsden. Its name is from a Cherokee word meaning "edible tree". In total area, it is the smallest county in Alabama, but one of the most densely populated. Etowah County comprises the Gadsden Metropolitan Statistical Area.