Preston Township, Richland County, Illinois

Preston Township is located in Richland County, Illinois. As of the 2010 census, its population was 1,247 and it contained 635 housing units. Before May 2, 1859, this locale was known as Douglas Township.

Geography
According to the 2010 census, the township has a total area of 41.53 sqmi, of which 40.73 sqmi (or 98.07%) is land and 0.8 sqmi (or 1.93%) is water.