Big Rock Township is located in Kane County, Illinois. As of the 2010 census, its population was 1,859 and it contained 717 housing units. Most of its land use is agricultural.
According to the 2010 census, the township has a total area of 35.11 square miles (90.9 km2), all land.
See also 
External links 
- ^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- ^ a b "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Retrieved 2013-05-28.