Big Rock is a village in Kane County, Illinois, United States. It is located approximately 50 miles due west of Chicago. It is between the villages of Hinckley and Sugar Grove.
As of the 2000 census, the village had a total population of 658, although it only became incorporated in July 26, 2001.
Big Rock is located at 41.759308 N, 88.537617 W.
According to the 2010 census, Big Rock has a total area of 4.33 square miles (11.21 km2), all land.