Jefferson Township is one of six townships in Switzerland County, Indiana, United States.

As of the 2020 census, its population was 3,203 and it contained 1,549 housing units.

[1] According to the 2010 census, the township has a total area of 37.2 square miles (96 km2), of which 36.96 square miles (95.7 km2) (or 99.35%) is land and 0.24 square miles (0.62 km2) (or 0.65%) is water.

[3] (This list is based on USGS data and may include former settlements.)