| Lake Poinsett | |
|---|---|
| Location | Hamlin / Brookings counties, near Arlington, South Dakota |
| Basin countries | United States |
Lake Poinsett is one of the largest lakes in the state of South Dakota.
The lake is located northeast of the town of Arlington, South Dakota. It was named in honor of the U. S. Secretary of War, Joel Poinsett. In 1838, the area was first visited by the expedition of Joseph Nicollet and John Fremont, who camped on the lake's north shore. Poinsett was instrumental in promoting the expedition.