Shell Rock, IA
Shell Rock is a city in Butler County, Iowa, United States, along the Shell Rock River. The population was 1,298 at the 2000 census. The city is located along the county's eastern border, between Butler and Bremer counties.
Shell Rock is located at 42°42′40″N 92°35′0″W / 42.71111°N 92.583333°W / 42.71111; -92.583333 (42.711033, -92.583471).
According to the United States Census Bureau, the city has a total area of 1.6 square miles (4.2 km²), of which, 1.6 square miles (4.0 km²) of it is land and 0.1 square miles (0.2 km²) of it (3.70%) is water.