Lakes / South Dakota / Charles Mix County / Lake Geddes
Lake Geddes, South Dakota
79.07 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.19 degrees N, 98.71 degrees W - Charles Mix 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 Geddes Stacks Up
- Larger than 31% of the 533 lakes counted in South Dakota.
- About 103 miles from Sioux Falls, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Goose Lake | Charles Mix | 7.4 mi | 160.87 acres |
| Lake Andes | Charles Mix | 13 mi | 4,755.54 acres |
| Joubert Lake | Douglas | 16 mi | 30.23 acres |
| Lake Platte | Charles Mix | 16 mi | 117.87 acres |
| Red Lake | Charles Mix | 17 mi | 165.07 acres |
| New Holland Lake | Douglas | 18 mi | 95.38 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Geddes
How Big Is Lake Geddes?
Lake Geddes covers 79.07 acres in Charles Mix County, South Dakota.
What Is the Largest Lake in Charles Mix County?
Lake Francis Case is the largest lake in Charles Mix County, at 82,166.92 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 148214656). Verified October 30, 2026.