Hopedale Township is located in Tazewell County, Illinois. As of the 2010 census, its population was 1,913 and it contained 806 housing units. Hopedale Township changed its name from Highland Township on May 20, 1850.
According to the 2010 census, the township has a total area of , of which (or 99.94%) is land and (or 0.06%) is water.