Lakes / South Dakota / Kingsbury County / Lake Thompson
Lake Thompson, South Dakota
13,887.93 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
44.27 degrees N, 97.45 degrees W - Kingsbury 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 Lake Thompson Stacks Up
- Ranks #5 for surface area among the South Dakota lakes counted so far - 13,887.93 acres.
- The largest lake in Kingsbury County among those counted.
- About 47 miles from Watertown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Henry | Kingsbury | 4.4 mi | 2,226.79 acres |
| Lake Whitewood | Kingsbury | 8.6 mi | 4,465.31 acres |
| McCart Slough | Miner | 11 mi | 74.87 acres |
| Spring Lake | Kingsbury | 12 mi | 425.76 acres |
| Gilman Lake | Lake | 13 mi | 129.24 acres |
| Lake Carthage | Miner | 14 mi | 199.17 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Thompson
How Big Is Lake Thompson?
Lake Thompson covers 13,887.93 acres in Kingsbury County, South Dakota.
What Is the Largest Lake in Kingsbury County?
Lake Thompson is the largest lake in Kingsbury County, at 13,887.93 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 123211918). Verified October 30, 2026.