Lakes / South Dakota / Hanson County / Ethan Lake
Ethan Lake, South Dakota
28.42 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
43.55 degrees N, 97.95 degrees W - Hanson 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 Ethan Lake Stacks Up
- Larger than 3% 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 |
|---|---|---|---|
| Lake Dimock | Hutchinson | 5.3 mi | 69.93 acres |
| Hanson Lake | Hanson | 9.1 mi | 59.55 acres |
| Fulton Lake | Hanson | 11 mi | 28.66 acres |
| Lake Mitchell | Davison | 15 mi | 669.16 acres |
| Welker Lake | Hanson | 16 mi | 57.58 acres |
| Corsica Lake | Douglas | 20 mi | 97.11 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Ethan Lake
How Big Is Ethan Lake?
Ethan Lake covers 28.42 acres in Hanson County, South Dakota.
What Is the Largest Lake in Hanson County?
Lake Eli is the largest lake in Hanson County, at 102.05 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 125113957). Verified October 30, 2026.