Lakes / South Dakota / Miner County / O'Neal Lake
O'Neal Lake, South Dakota
30.64 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.96 degrees N, 97.81 degrees W - Miner 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 O'Neal Lake Stacks Up
- Larger than 5% of the 533 lakes counted in South Dakota.
- About 61 miles from Sioux Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Morris Lake | Miner | 1.7 mi | 58.34 acres |
| Twin Lakes | Miner | 5.1 mi | 170.75 acres |
| Glee Lake | Miner | 5.6 mi | 63.01 acres |
| Bitter Lake | Miner | 6.0 mi | 116.88 acres |
| Ness Chain Lake | Miner | 7.0 mi | 247.35 acres |
| School Section Lakes | Sanborn | 7.3 mi | 182.28 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About O'Neal Lake
How Big Is O'Neal Lake?
O'Neal Lake covers 30.64 acres in Miner County, South Dakota.
What Is the Largest Lake in Miner County?
Ness Chain Lake is the largest lake in Miner County, at 247.35 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 125119782). Verified October 30, 2026.