Sullivan Township is located in Livingston County, Illinois. As of the 2010 census, its population was 724 and it contained 354 housing units.[2] Sullivan Township formed from Saunemin Township in 1863.
Geography
According to the 2010 census, the township has a total area of 41.28 square miles (106.9 km2), all land.[2]
The township contains the village of Cullom and the former communities of Griswold, Sullivan Center and Saxony.