Lakes / South Dakota / Roberts County / Mollie Lake
Mollie Lake, South Dakota
37.56 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.37 degrees N, 97.03 degrees W - Roberts 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 Mollie Lake Stacks Up
- Larger than 9% of the 533 lakes counted in South Dakota.
- About 33 miles from Watertown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Hurricane Lake | Roberts | 5.7 mi | 324.2 acres |
| Summit Lake | Grant | 6.3 mi | 170.26 acres |
| Owl Lake | Roberts | 7.0 mi | 143.57 acres |
| Twin Lakes | Grant | 8.2 mi | 156.42 acres |
| Pearson Slough | Roberts | 8.7 mi | 84.51 acres |
| Mud Lake | Roberts | 8.8 mi | 71.91 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mollie Lake
How Big Is Mollie Lake?
Mollie Lake covers 37.56 acres in Roberts County, South Dakota.
What Is the Largest Lake in Roberts County?
Lake Traverse is the largest lake in Roberts County, at 10,747.48 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 122547808). Verified October 30, 2026.