South Ottawa Township, LaSalle County, Illinois

South Ottawa Township is located in LaSalle County, Illinois. As of the 2010 census, its population was 8,290 and it contained 3,609 housing units.

Geography
According to the 2010 census, the township has a total area of 21.05 sqmi, of which 19.67 sqmi (or 93.44%) is land and 1.38 sqmi (or 6.56%) is water.