Lakes / South Dakota / McCook County / Gross Lake
Gross Lake, South Dakota
79.57 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.67 degrees N, 97.50 degrees W - McCook 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 Gross Lake Stacks Up
- Larger than 32% of the 533 lakes counted in South Dakota.
- About 40 miles from Sioux Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Schimmel Slough | McCook | 2.5 mi | 94.39 acres |
| Lions Lake | McCook | 2.7 mi | 37.56 acres |
| Tuschen Slough | McCook | 2.7 mi | 104.03 acres |
| Macke Lake | McCook | 4.5 mi | 38.55 acres |
| Lake Eli | Hanson | 7.2 mi | 102.05 acres |
| Welker Lake | Hanson | 8.7 mi | 57.58 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Gross Lake
How Big Is Gross Lake?
Gross Lake covers 79.57 acres in McCook County, South Dakota.
What Is the Largest Lake in McCook County?
East Vermillion Lake is the largest lake in McCook County, at 569.27 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 125127703). Verified October 30, 2026.