Root Township is one of twelve townships in Adams County, Indiana. As of the 2020 census, its population was 6,033, up from 4,443 at the 2010 census.
According to the 2010 census, the township has a total area of , of which (or 99.63%) is land and (or 0.34%) is water.
The township contains these cemeteries: Alpha, Evans Family, Kunkel Family, Monmouth, Pleasant Valley, Reynolds, St. Joseph Catholic, St. Peter Lutheran, Union Chapel Methodist and United Brethren.