Pecatonica Township is located in Winnebago County, Illinois. As of the 2010 census, its population was 4,355 and it contained 1,750 housing units.[4]
Geography
According to the 2010 census, the township has a total area of 35.49 square miles (91.9 km2), of which 35.13 square miles (91.0 km2) (or 98.99%) is land and 0.36 square miles (0.93 km2) (or 1.01%) is water.[4]