Lakes / South Dakota / Tripp County / Dog Ear Lake
Dog Ear Lake, South Dakota
241.02 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.17 degrees N, 99.90 degrees W - Tripp 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 Dog Ear Lake Stacks Up
- Larger than 69% of the 533 lakes counted in South Dakota.
- The largest lake in Tripp County among those counted.
- About 86 miles from Pierre, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Little Dog Ear Lake | Tripp | 9.4 mi | 44.72 acres |
| Roosevelt Lake | Tripp | 14 mi | 86.5 acres |
| Lambert Lake | Tripp | 17 mi | 59.84 acres |
| Lake Burch | Gregory | 26 mi | 110.46 acres |
| Hamill Dam Reservoir | Tripp | 31 mi | 34.1 acres |
| Antelope Lake | Todd | 37 mi | 99.58 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Dog Ear Lake
How Big Is Dog Ear Lake?
Dog Ear Lake covers 241.02 acres in Tripp County, South Dakota.
What Is the Largest Lake in Tripp County?
Dog Ear Lake is the largest lake in Tripp County, at 241.02 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 149715875). Verified October 30, 2026.