Lakes / South Dakota / McPherson County / Rath Lake
Rath Lake, South Dakota
179.89 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.90 degrees N, 99.10 degrees W - McPherson 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 Rath Lake Stacks Up
- Larger than 60% of the 533 lakes counted in South Dakota.
- About 42 miles from Aberdeen, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Long Lake | McPherson | 8.7 mi | 364.48 acres |
| Klooz Lake | McPherson | 9.3 mi | 207.07 acres |
| Schumacher Lake | McPherson | 10 mi | 56.09 acres |
| Alkali Lake | McPherson | 11 mi | 121.58 acres |
| Elm Lake | Brown | 19 mi | 1,225.4 acres |
| Crompton Lake | McPherson | 22 mi | 56.83 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Rath Lake
How Big Is Rath Lake?
Rath Lake covers 179.89 acres in McPherson County, South Dakota.
What Is the Largest Lake in McPherson County?
Long Lake is the largest lake in McPherson County, at 364.48 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 147891766). Verified October 30, 2026.