 The community was named after James Vernon, who is credited with bringing the Salzburger emigrants to Georgia.Vernonburg is located at (31.967361, -81.12073).According to the United States Census Bureau, the town has a total area of 0.4 square mile (1.0 km²), of which 0.4 square mile (0.9 km²) is land and 2.70% is water.