Big Rock is located in southwestern Kane County. U.S. Route 30 passes through the north side of the village, leading east 5 miles (8 km) to Sugar Grove and west the same distance to Hinckley.
According to the 2010 census, Big Rock has a total area of 4.33 square miles (11.21 km2), all land.[4]
Demographics
This section needs expansion. You can help by adding to it. (July 2015)