Lakes / South Dakota / McCook County / East Vermillion Lake
East Vermillion Lake, South Dakota
569.27 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.60 degrees N, 97.17 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 East Vermillion Lake Stacks Up
- Larger than 83% of the 533 lakes counted in South Dakota.
- The largest lake in McCook County among those counted.
- About 23 miles from Sioux Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Englehardt Slough | Minnehaha | 2.7 mi | 202.92 acres |
| Lost Lake | Minnehaha | 5.0 mi | 102.55 acres |
| Rehfeldt Slough | Minnehaha | 6.1 mi | 52.39 acres |
| Beaver Lake | Minnehaha | 6.5 mi | 240.43 acres |
| Grass Lake | Minnehaha | 6.8 mi | 271.32 acres |
| Lost Lake | Minnehaha | 7.8 mi | 94.89 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About East Vermillion Lake
How Big Is East Vermillion Lake?
East Vermillion Lake covers 569.27 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 123218588). Verified October 30, 2026.