Stone County is a county located in the southwestern portion of the U.S. state of Missouri. As of the 2010 census, the population was 32,202. Its county seat is Galena. The county was officially organized on February 10, 1851, and is named after William Stone, an English pioneer and an early settler in Maryland who also served as Taney County Judge.

Stone County is a county located in the southwestern portion of the U.S. state of Missouri. As of the 2010 census, the population was 32,202. Its county seat is Galena. The county was officially organized on February 10, 1851, and is named after William Stone, an English pioneer and an early settler in Maryland who also served as Taney County Judge.