| Official Name: | Corn Creek, South Dakota |
| Pushpin Map: | South Dakota#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Mellette |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.42 |
| Area Land Km2: | 5.26 |
| Area Water Km2: | 0.16 |
| Area Total Sq Mi: | 2.09 |
| Area Land Sq Mi: | 2.03 |
| Area Water Sq Mi: | 0.06 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 113 |
| Population Density Km2: | 21.50 |
| Population Density Sq Mi: | 55.69 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 2365 |
| Coordinates: | 43.565°N -101.2011°W |
| Area Code: | 605 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1266592 |
Corn Creek is an unincorporated community and census-designated place in Mellette County, South Dakota, United States. Its population was 113 as of the 2020 census.[3] The community is located near the intersection of South Dakota Highway 44 and South Dakota Highway 63.
According to the U.S. Census Bureau, the community has an area of ; of its area is land, and is water.[4]
The community is served by White River School District 47-1.