Lakes / South Dakota / Brown County
Lakes in Brown County, South Dakota
8 lakes counted in Brown County - the largest is Columbia Road Reservoir at 7,074.89 acres.
8
Lakes Counted
7,074.89 acres
Largest - Columbia Road Reservoir
Brown County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Columbia Road Reservoir | Brown | 7,074.89 acres | - |
| 2 | Elm Lake | Brown | 1,225.4 acres | - |
| 3 | Richmond Lake | Brown | 810.01 acres | - |
| 4 | Willow Creek Lake | Brown | 255.51 acres | - |
| 5 | Lords Lake | Brown | 89.45 acres | - |
| 6 | Alkali Lake | Brown | 85.75 acres | - |
| 7 | Salt Lake | Brown | 78.58 acres | - |
| 8 | Pigors Lake | Brown | 58.32 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.