Gardner Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 4,245 and it contained 1,732 housing units. The township contains the unincorporated communities of Bradfordton and Salisbury.The township annexed the western half of Salisbury Township in 1989, thereby taking in the unincorporated village of Salisbury and increasing in size.GeographyAccording to the 2010 census, the township has a total area of, of which is land and is water.
