 According to the United States Census Bureau, the CDP has a total area of 4.5 square miles (11.7 km2), of which 3.7 square miles (9.6 km2) is land and 0.8 square mile (2.1 km2) (18.10%) is water.Boaz has several unknown Indian mounds that have been protected by the residents of Boaz since they were discovered in 1895.These mounds have yet to be excavated.