Lakes / South Dakota / Marshall County / Two Island Lake
Two Island Lake, South Dakota
85.5 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.76 degrees N, 97.45 degrees W - Marshall 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 Two Island Lake Stacks Up
- Larger than 34% of the 533 lakes counted in South Dakota.
- About 54 miles from Aberdeen, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| East Slough | Marshall | 0.7 mi | 99.83 acres |
| Ninemile Lake | Marshall | 0.9 mi | 245.13 acres |
| Little Cottonwood Lake | Marshall | 1.6 mi | 39.29 acres |
| Sixmile Lake | Marshall | 1.6 mi | 109.22 acres |
| Wise Spirit Lake | Marshall | 1.7 mi | 67.95 acres |
| Isabelle Lake | Marshall | 2.0 mi | 137.64 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Two Island Lake
How Big Is Two Island Lake?
Two Island Lake covers 85.5 acres in Marshall County, South Dakota.
What Is the Largest Lake in Marshall County?
Buffalo Lakes is the largest lake in Marshall County, at 1,986.48 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 145086757). Verified October 30, 2026.