Prairie Township is a township in Davis County, Iowa, USA. As of the 2000 census, its population was 394. In 2020 the population was 395.
Prairie Township was organized in 1846.
Prairie Township covers an area of 27.63 square miles (71.57 square kilometers); of this, 0.06 square miles (0.15 square kilometers) or 0.21 percent is water.
The township contains seven cemeteries: Amish Mennonite Church, Armstrong, K P, Knights of Pythias Lodge, Pansy Hill, Pulaski and Wheaton.