Lakes / South Dakota / Walworth County / Molstad Lake
Molstad Lake, South Dakota
107.74 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.57 degrees N, 100.30 degrees W - Walworth 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 Molstad Lake Stacks Up
- Larger than 45% of the 533 lakes counted in South Dakota.
- About 83 miles from Pierre, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Little Sand Lake | Campbell | 11 mi | 41.76 acres |
| Sand Lake | Campbell | 11 mi | 315.8 acres |
| Renz Lake | Campbell | 14 mi | 72.9 acres |
| Lake Campbell | Campbell | 14 mi | 47.44 acres |
| Salt Lake | Campbell | 19 mi | 318.77 acres |
| Big Lake | Campbell | 19 mi | 71.91 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Molstad Lake
How Big Is Molstad Lake?
Molstad Lake covers 107.74 acres in Walworth County, South Dakota.
What Is the Largest Lake in Walworth County?
Swan Lake is the largest lake in Walworth County, at 2,467.35 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 145469687). Verified October 30, 2026.