Jonestown is located at (30.488872, -97.924208) [REF].
According to the United States Census Bureau, the city has a total area of 5.3 square miles (13.7 km2), of which, 4.7 square miles (12.1 km2) of it is land and 0.6 square miles (1.6 km2) of it (11.34%) is water.