Lakes in Clark County, Ohio
3 lakes counted in Clark County - the largest is C.J. Brown Reservoir at 1,969 acres.
3
Lakes Counted
1,969 acres
Largest - C.J. Brown Reservoir
35 ft
Deepest - C.J. Brown Reservoir
Clark County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | C.J. Brown Reservoir | Clark | 1,969 acres | 35 ft |
| 2 | Clark Lake | Clark | 102 acres | 6 ft |
| 3 | Lake Sylvan | Clark | 43 acres | None |
Sources: Ohio DNR lake data; USGS. Verified October 28, 2026.