Benton Township is one of thirteen townships in Fremont County, Iowa, United States. As of the 2010 census, its population was 254 and it contained 122 housing units.
As of the 2010 census, Benton Township covered an area of ; of this, (97.13 percent) was land and (2.87 percent) was water.
(This list is based on USGS data and may include former settlements.)
(These towns are listed as "historical" by the USGS.)
The township contains Blanchard Cemetery and Lambert Cemetery.