Forreston Township, Ogle County, Illinois
Forreston Township is located in Ogle County, Illinois. As of the 2010 census, its population was 2,080 and it contained 885 housing units. Forreston Township was formed from a portion of Brookville Township on March 4, 1857. The village of Forreston and the unincorporated community of Baileyville are located within it. Geography. 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.