Spring Grove Township, Warren County, Illinois

Spring Grove Township is located in Warren County, Illinois, United States. As of the 2010 census, its population was 1,013 and it contained 598 housing units.

A portion of the village of Alexis is located in this township.

Geography
According to the 2010 census, the township has a total area of 36.92 sqmi, of which 36.84 sqmi (or 99.78%) is land and 0.08 sqmi (or 0.22%) is water.