Chester Township is located in Logan County, Illinois.

As of the 2010 census, its population was 669 and it contained 298 housing units.

[2] Chester Township changed its name from Madison Township sometime prior to 1921.

According to the 2010 census, the township has a total area of 38.31 square miles (99.2 km2), of which 38.29 square miles (99.2 km2) (or 99.95%) is land and 0.02 square miles (0.052 km2) (or 0.05%) is water.

This Logan County, Illinois location article is a stub.