Lakes / Mississippi / Smith County
Lakes in Smith County, Mississippi
4 lakes counted in Smith County - the largest is Lake Ross Barnett at 84.23 acres.
4
Lakes Counted
84.23 acres
Largest - Lake Ross Barnett
Smith County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Ross Barnett | Smith | 84.23 acres | - |
| 2 | Marathon Lake | Smith | 41.55 acres | - |
| 3 | Beaver Lake | Smith | 37.83 acres | - |
| 4 | Greentree Reservoir | Smith | 26.07 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.