Rock Grove Township is one of twelve townships in Floyd County, Iowa, USA. At the 2000 census, its population was 1,849.

According to the United States Census Bureau, Rock Grove Township covers an area of 39.92 square miles (103.4 km) of which 39.89 square miles (103.3 km) {99.93 percent) is land and 0.03 square miles (0.078 km) (0.07 percent) is water.

• Nora Springs (vast majority)

• Nora Junction at 43°08′24″N 93°00′59″W / 43.139969°N 93.016312°W / 43.139969; -93.016312

(This list is based on USGS data and may include former settlements.)

• Cedar Township, Mitchell County (northeast)
• Rudd Township (east)
• Rockford Township (south)
• Portland Township, Cerro Gordo County (west)
• Falls Township, Cerro Gordo County (northwest)

The township contains three cemeteries: Park, Rock Grove Township and Spring Grove.

• U.S. Route 18

• Shell Rock River

• Nora Springs-Rock Falls Community School District
• Rudd-Rockford-Marble Rk Community School District

• Iowa's 4th congressional district
• State House District 14
• State Senate District 7

• United States Census Bureau 2008 TIGER/Line Shapefiles
• United States Board on Geographic Names (GNIS)
• United States National Atlas

• US-Counties.com
• City-Data.com