Futaba (双葉町 Futaba-machi) is a town in Futaba District, Fukushima Prefecture, Japan. As of December 2014, the town had an official registered population of 6,113 and a population density of 119 persons per km2. The total area was 51.40 square kilometres (19.85 sq mi). However, as of March 2011 the entire population was evacuated as a result of the Fukushima Daiichi nuclear disaster. Since 2013, only 4% of the town has been open to visitors.