Swan Township, Warren County, Illinois

Swan Township is located in Warren County, Illinois, United States. As of the 2010 census, its population was 265 and it contained 126 housing units.

Geography
According to the 2010 census, the township has a total area of 35.34 sqmi, of which 35.33 sqmi (or 99.97%) is land and 0.01 sqmi (or 0.03%) is water.