Olney Township, Richland County, Illinois

Olney Township is located in Richland County, Illinois. As of the 2010 census, its population was 10,334 and it contained 4,836 housing units.

Geography
According to the 2010 census, the township has a total area of 48.08 sqmi, of which 47.14 sqmi (or 98.04%) is land and 0.94 sqmi (or 1.96%) is water.