Lakes / South Dakota / Beadle County / Staum Dam
Staum Dam, South Dakota
39.78 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
44.59 degrees N, 97.89 degrees W - Beadle 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 Staum Dam Stacks Up
- Larger than 12% of the 533 lakes counted in South Dakota.
- About 43 miles from Watertown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Byron | Beadle | 12 mi | 1,798.43 acres |
| Fordham Dam | Clark | 12 mi | 82.78 acres |
| Mud Lake | Clark | 13 mi | 100.82 acres |
| Piper Lake | Beadle | 13 mi | 81.79 acres |
| Willow Lake | Clark | 13 mi | 344.46 acres |
| Connors Lake | Beadle | 14 mi | 91.43 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Staum Dam
How Big Is Staum Dam?
Staum Dam covers 39.78 acres in Beadle County, South Dakota.
What Is the Largest Lake in Beadle County?
Lake Byron is the largest lake in Beadle County, at 1,798.43 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 145670518). Verified October 30, 2026.