Ellis is an unincorporated community in south central Minnehaha County, South Dakota, United States. Ellis is located about 1 mile west of the Sioux Falls city limits on Ellis Road, or 1.5 miles north of South Dakota Highway 42. The Ellis & Eastern Railroad is based in Ellis, running 14.5 miles to Valley Springs to the east on the Minnesota border. The town's "main street" is 1 mile from the western city limits of Sioux Falls. The community is considered a suburb of Sioux Falls.
Ellis was founded on April 27, 1893, and was originally called Scoopville.
Coordinates: 43°33′45″N 96°49′50″W / 43.56250°N 96.83056°W