Bloomfield Township is one of eleven townships in LaGrange County, Indiana. As of the 2020 census, its population was 5,746 (up from 5,412 at the 2010 census), and it contained 2,270 housing units.
Bloomfield Township was founded in 1835.
According to the 2010 census, the township has a total area of , of which (or 99.25%) is land and (or 0.75%) is water.