Lakes / South Dakota / Meade County / Opal Lake
Opal Lake, South Dakota
30.39 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
44.91 degrees N, 102.42 degrees W - Meade 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 Opal Lake Stacks Up
- Larger than 4% of the 533 lakes counted in South Dakota.
- About 70 miles from Rapid City, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Maurine Lake | Meade | 12 mi | 27.92 acres |
| Reed Dam | Meade | 14 mi | 33.61 acres |
| Durkee Lake | Meade | 19 mi | 96.37 acres |
| Beck Lake | Perkins | 22 mi | 39.54 acres |
| Howes Grazing Lake | Meade | 29 mi | 56.34 acres |
| Lake Buffalo | Ziebach | 29 mi | 42.01 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Opal Lake
How Big Is Opal Lake?
Opal Lake covers 30.39 acres in Meade County, South Dakota.
What Is the Largest Lake in Meade County?
Bear Butte Lake is the largest lake in Meade County, at 199.41 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 150351998). Verified October 30, 2026.