Decker Township is located in Richland County, Illinois. As of the 2010 census, its population was 406 and it contained 170 housing units.
History Decker Township bears the name of Thomas J. Decker, a local pioneer. Before May 2, 1859, the township was known as Jackson Township.
Geography According to the 2010 census, the township has a total area of , of which (or 99.91%) is land and (or 0.09%) is water.
Demographics
References
External links City-data.com Illinois State Archives