| South Dakota State Fair | |
| Location: | South Dakota State Fairgrounds Huron, South Dakota, United States |
| Years Active: | 1885–1916, 1919-41, 1946-2019, 2021- |
| Next: | 8-29 to 9-02-2024 |
| Dates: | 5 days |
| Attendance: | 211,371 (2016); 0 (2020)[1] |
| Area: | 180NaN |
| Website: | Official Website |
The South Dakota State Fair is an annual state fair held in Huron, South Dakota. It is held for five days over Labor Day Weekend. The fair is operated by the South Dakota Department of Agriculture and Natural Resources.