About This Place
Chadwick is a village in Carroll County, Illinois, United States. The population was 551 at the 2010 census, up from 505 at the 2000 census.
Chadwick is located at 42°0′51″N 89°53′21″W / 42.01417°N 89.88917°W / 42.01417; -89.88917 (42.014081, -89.889078).
According to the United States Census Bureau, the village has a total area of 0.3 square miles (0.8 km²), all of it land.