Kilbourne Township, Mason County, Illinois

Kilbourne Township is located in Mason County, Illinois. As of the 2010 census, its population was 504 and it contained 245 housing units.

Geography
According to the 2010 census, the township has a total area of 40.36 sqmi, of which 40.1 sqmi (or 99.36%) is land and 0.26 sqmi (or 0.64%) is water.