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.

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

According to the 2010 census, the township has a total area of 36.92 square miles (95.6 km2), of which 36.84 square miles (95.4 km2) (or 99.78%) is land and 0.08 square miles (0.21 km2) (or 0.22%) is water.

This Warren County, Illinois location article is a stub.