Lakes / South Dakota / Edmunds County / Alkali Lake
Alkali Lake, Edmunds County, South Dakota
285.41 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.25 degrees N, 99.65 degrees W - Edmunds 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 Alkali Lake Stacks Up
- Larger than 73% of the 533 lakes counted in South Dakota.
- About 58 miles from Aberdeen, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Swan Lake | Walworth | 10 mi | 2,467.35 acres |
| Flight Lake | Potter | 14 mi | 581.93 acres |
| Spring Lake | Walworth | 15 mi | 677.81 acres |
| Clark Lake | Faulk | 16 mi | 95.63 acres |
| Ford Lake | Faulk | 17 mi | 213.5 acres |
| Green Lake | Potter | 18 mi | 1,153.48 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Alkali Lake
How Big Is Alkali Lake?
Alkali Lake covers 285.41 acres in Edmunds County, South Dakota.
What Is the Largest Lake in Edmunds County?
North Scatterwood Lake is the largest lake in Edmunds County, at 931.83 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 147899849). Verified October 30, 2026.