Deer Park Township is located in LaSalle County, Illinois. As of the 2010 census, its population was 492 and it contained 217 housing units.[2]
Geography
According to the 2010 census, the township has a total area of 33.03 square miles (85.5 km2), of which 31.33 square miles (81.1 km2) (or 94.85%) is land and 1.7 square miles (4.4 km2) (or 5.15%) is water.[2]