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.

According to the 2010 census, the township has a total area of 35.11 square miles (90.9 km2), all land.

[3] U.S. Route 30 runs east to west through the township.

This Kane County, Illinois location article is a stub.