Chatham Township, Sangamon County, Illinois

Chatham Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 6,978 and it contained 2,963 housing units. Chatham Township changed its name from Campbell Township on September 2, 1863.

Geography
According to the 2010 census, the township has a total area of 37.26 sqmi, of which 37.23 sqmi (or 99.92%) is land and 0.03 sqmi (or 0.08%) is water.