Adams Township is one of fourteen townships in Cass County, Indiana, United States. As of the 2020 census, its population was 886 (down from 895 at 2010[3]) and it contained 377 housing units.
According to the 2010 census, the township has a total area of 28.86 square miles (74.7 km2), of which 28.75 square miles (74.5 km2) (or 99.62%) is land and 0.11 square miles (0.28 km2) (or 0.38%) is water.[3]