Napoleon is a town in Jackson Township, Ripley County, Indiana, United States. The population was 234 at the 2010 census.
Napoleon is located at 39°12′15″N 85°19′43″W / 39.20417°N 85.32861°W / 39.20417; -85.32861 (39.204250, -85.328659).
According to the United States Census Bureau, the town has a total area of 0.2 square miles (0.5 km²).0.2 square miles (0.5 km²). All of it is land and none of it is covered by water, with the exception of the Dean family pond. The pond was formerly the water supply for the town and a has become a very popular "fishing hole".