Hollis Township is located in Peoria County, Illinois.

As of the 2010 census, its population was 1,881 and it contained 768 housing units.

[2] The village of Mapleton is the only incorporated town in the township.

According to the 2010 census, the township has a total area of 25.11 square miles (65.0 km2), of which 23.97 square miles (62.1 km2) (or 95.46%) is land and 1.13 square miles (2.9 km2) (or 4.50%) is water.

This Peoria County, Illinois location article is a stub.