Clay Township is one of twelve townships in Bartholomew County, Indiana, United States. As of the 2010 census, its population was 3,271 and it contained 1,320 housing units.
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.
The township contains these two cemeteries: Sand Hill and Sharon.