Lakes / South Dakota / Jerauld County / Deans Lake
Deans Lake, South Dakota
26.29 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
44.07 degrees N, 98.61 degrees W - Jerauld 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 Deans Lake Stacks Up
- Larger than 1% of the 533 lakes counted in South Dakota.
- About 89 miles from Pierre, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Bakers Lake | Jerauld | 2.4 mi | 38.55 acres |
| Long Lake | Jerauld | 8.7 mi | 298.26 acres |
| Cottonwood Lake | Jerauld | 11 mi | 100.57 acres |
| Wilmarth Lake | Aurora | 14 mi | 106.26 acres |
| McCoy Lake | Sanborn | 15 mi | 61.28 acres |
| Twin Lakes | Sanborn | 16 mi | 139.86 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Deans Lake
How Big Is Deans Lake?
Deans Lake covers 26.29 acres in Jerauld County, South Dakota.
What Is the Largest Lake in Jerauld County?
Long Lake is the largest lake in Jerauld County, at 298.26 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 144277674). Verified October 30, 2026.