Coolspring Township, LaPorte County, Indiana

Coolspring Township is one of twenty-one townships in LaPorte County, Indiana. As of the 2020 census, its population was 15,684 (up from 14,718 at 2010 ) and it contained 7,302 housing units.

Coolspring Township was established in 1836.

Geography
According to the 2010 census, the township has a total area of 36.1 sqmi, of which 35.97 sqmi (or 99.64%) is land and 0.14 sqmi (or 0.39%) is water.

The headwaters of the Little Calumet River is located within Coolspring Township, at Red Mill County Park.

The unincorporated town of Waterford is located within the township.