A column chart that shows the top ten countries with the most nuclear reactors. Out of a total of 415 nuclear reactors worldwide, these are the ten countries with the highest numbers. The United States of America has a number of 94 nuclear reactors, followed by China and France with 56 reactors, Russia has 36, Korea has 26, India has 20, Canada has 19, Ukraine has 15, Japan has 12 and the United Kingdom has 9.