Cascade Township, Dubuque County, Iowa
Cascade Township is one of seventeen townships in Dubuque County, Iowa, United States. As of the 2000 census, its population was 1,079. History. The name of Cascade Township is derived from the cascade, or water power, with which early settlers powered their mills. Geography. According to the United States Census Bureau, Cascade Township covers an area of 35.78 square miles (92.68 square kilometers). Cemeteries. The township contains these five cemeteries: Cascade Protestant, Johns Creek, Saint Martins Catholic, Saint Marys Catholic and Zion Reform.