Bellflower Township is located in McLean County, Illinois. As of the 2010 census, its population was 585 and it contained 267 housing units. Bellflower Township changed its name from Prairie Township on May 17, 1858.
According to the 2010 census, the township has a total area of 48.7 square miles (126 km2), all land.
Coordinates: 40°20′26″N 88°31′05″W / 40.34056°N 88.51806°W / 40.34056; -88.51806