Dell Rapids is a city in Minnehaha County, South Dakota, United States. The population was 3,633 at the 2010 census. It is known as "The Little City with the Big Attractions."
The city took its name from the Dells of the Wisconsin River, which were likened to the local rapids on the Big Sioux River.
Dell Rapids was originally named Dell City, but it was changed to its current name because of the rapids of the Big Sioux River. A fire broke out on the main street and burned most of it, so it was rebuilt out of Sioux Quartzite, a common rock found in the area. The Chicago, Milwaukee, and Saint Paul Railroad built a railroad into the area, reaching Dell Rapids from Egan in 1881. Two large Sioux Quartzite quarries owned by LG. Everest are operated via this rail line, which is now operated by LG's subsidiary, the D&I Railroad. The community celebrates its heritage with the annual "Quarry Days", which takes place in July, and in June, the city hosts "Cootie Days", where rides and games are set up and available in the city's park.
Dell Rapids is located at 43°49′30″N 96°42′40″W (43.824883, -96.711158), along the Big Sioux River.
According to the United States Census Bureau, the city has a total area of 2.09 square miles (5.41 km2), of which 2.03 square miles (5.26 km2) is land and 0.06 square miles (0.16 km2) is water.
Dell Rapids has been assigned the ZIP code 57022 and the FIPS place code 15980.
At the 2010 census there were 3,633 people, 1,388 households, and 973 families living in the city. The population density was 1,789.7 inhabitants per square mile (691.0/km2).