Chesterfield Township (T9N R9W) is located in Macoupin County, Illinois, United States. As of the 2010 census, its population was 855 and it contained 380 housing units.[2]
Geography
According to the 2010 census, the township has a total area of 35.7 square miles (92 km2), of which 35.67 square miles (92.4 km2) (or 99.92%) is land and 0.03 square miles (0.078 km2) (or 0.08%) is water.[2]