Lakes / South Dakota / Minnehaha County / Lost Lake
Lost Lake, Minnehaha County, South Dakota
102.55 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.58 degrees N, 97.08 degrees W - Minnehaha 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 Lost Lake Stacks Up
- Larger than 43% of the 533 lakes counted in South Dakota.
- About 18 miles from Sioux Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Rehfeldt Slough | Minnehaha | 1.1 mi | 52.39 acres |
| Grass Lake | Minnehaha | 2.2 mi | 271.32 acres |
| Englehardt Slough | Minnehaha | 2.3 mi | 202.92 acres |
| Fensterman Slough | Minnehaha | 3.8 mi | 158.39 acres |
| Beaver Lake | Minnehaha | 4.2 mi | 240.43 acres |
| East Vermillion Lake | McCook | 5.0 mi | 569.27 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lost Lake
How Big Is Lost Lake?
Lost Lake covers 102.55 acres in Minnehaha County, South Dakota.
What Is the Largest Lake in Minnehaha County?
Clear Lake is the largest lake in Minnehaha County, at 491.58 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 123210287). Verified October 30, 2026.