Lakes in Dallas County, Iowa
2 lakes counted in Dallas County - the largest is Dale Maffit Reservoir at 187 acres.
2
Lakes Counted
187 acres
Largest - Dale Maffit Reservoir
Dallas County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Dale Maffit Reservoir | Dallas | 187 acres | - |
| 2 | Diamondhead Lake | Dallas | 96 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.