Lakes in Clinton County, Ohio
2 lakes counted in Clinton County - the largest is Cowan Lake at 695 acres.
2
Lakes Counted
695 acres
Largest - Cowan Lake
35 ft
Deepest - Cowan Lake
Clinton County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Cowan Lake | Clinton | 695 acres | 35 ft |
| 2 | Wilmington Reservoir Number Two | Clinton | 55.1 acres | None |
Sources: Ohio DNR lake data; USGS. Verified October 28, 2026.