Prairie Township is one of thirteen townships in Henry County, Indiana, United States.

As of the 2010 census, its population was 5,517 and it contained 1,346 housing units.

[2] According to the 2010 census, the township has a total area of 40.73 square miles (105.5 km2), of which 39.74 square miles (102.9 km2) (or 97.57%) is land and 0.99 square miles (2.6 km2) (or 2.43%) is water.

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

The township contains six retired cemeteries: Beech Grove, Harvey, Lebanon, Livezey, Evans and Powers.