Springfield Township is one of twenty-one townships in LaPorte County, Indiana. As of the 2020 census, its population was 3,770 (down from 4,045 at 2010) and it contained 1,574 housing units.

Springfield Township was established in 1835.

Geography

According to the 2010 census, the township has a total area of 33.41 square miles (86.5 km), of which 33.29 square miles (86.2 km) (or 99.64%) is land and 0.12 square miles (0.31 km) (or 0.36%) is water.

Communities in the township include the incorporated town of Michiana Shores and the unincorporated community of Springville.