Carrollton Township is one of fourteen townships in Carroll County, Indiana. As of the 2020 census, its population was 651 (up from 598 at 2010[4]) and it contained 240 housing units.
According to the 2010 census, the township has a total area of 29.59 square miles (76.6 km2), of which 29.58 square miles (76.6 km2) (or 99.97%) is land and 0.01 square miles (0.026 km2) (or 0.03%) is water.[4]