Morningside is a census-designated place (CDP) in Beadle County, South Dakota, United States.

[5] Morningside is located on the east side of the city of Huron, the Beadle County seat.

The James River forms the western edge of Morningside and separates it from the center of Huron.

U.S. Route 14 forms the northern edge of Morningside and leads west into Huron and east 31 miles (50 km) to De Smet.

According to the United States Census Bureau, the Morningside CDP has a total area of 0.50 square miles (1.3 km2), all land.