Richland Township is one of twelve townships in Rush County, Indiana. As of the 2020 census, its population was 305 and it contained 135 housing units.
Richland Township most likely was so named on account of their fertile soil.
According to the 2010 census, the township has a total area of , of which (or 99.96%) is land and (or 0.04%) is water.
(This list is based on USGS data and may include former settlements.)