Lakes / South Dakota / Sully County / Stone Lake
Stone Lake, South Dakota
1,023.51 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
44.88 degrees N, 99.75 degrees W - Sully County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Stone Lake Stacks Up
- Larger than 89% of the 533 lakes counted in South Dakota.
- The largest lake in Sully County among those counted.
- About 46 miles from Pierre, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Cottonwood Lake | Sully | 8.4 mi | 461.59 acres |
| Spring Lake | Hyde | 8.9 mi | 248.66 acres |
| Thomas Lake | Hyde | 12 mi | 157.46 acres |
| Durrstein Lake | Sully | 13 mi | 83.68 acres |
| Rice Lake | Hyde | 14 mi | 202.77 acres |
| Baloun Lake | Hyde | 18 mi | 98.6 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Stone Lake
How Big Is Stone Lake?
Stone Lake covers 1,023.51 acres in Sully County, South Dakota.
What Is the Largest Lake in Sully County?
Stone Lake is the largest lake in Sully County, at 1,023.51 acres.
Largest Lakes in South Dakota
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Oahe | Dewey | 309,912.57 acres | - |
| 2 | Lake Francis Case | Charles Mix | 82,166.92 acres | - |
| 3 | Lake Sharpe | Hughes | 58,419.67 acres | - |
| 4 | Lewis and Clark Lake | Bon Homme | 25,141.99 acres | - |
| 5 | Lake Thompson | Kingsbury | 13,887.93 acres | - |
All 533 South Dakota lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 147900722). Verified October 30, 2026.