Nicholas County Lake Quality
Kentucky, 1 lakes, average grade B (Good)
Only 1 lakes in Nicholas County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. With an average grade of B, Nicholas County sits comfortably above the {{stateName}} median.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lake Cannigo (B) is the cleanest in the county.
Quick Answers for Nicholas County
Planning a trip? Check special fishing regulations for Lake Cannigo — or check the official Kentucky fishing regulations.
All Lakes in Nicholas County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lake Cannigo | B | - | 15.8 µg/L |
Other Counties in Kentucky
See how Nicholas County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Nicholas County
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Source: EPA National Aquatic Resource Surveys, 2026.