Carroll County Lake Quality
Kentucky, 1 lakes, average grade C (Fair)
Only 1 lakes in Carroll 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. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
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. General Butler State Park Lake (C) is the cleanest in the county.
Quick Answers for Carroll County
Planning a trip? Check special fishing regulations for General Butler State Park Lake — or check the official Kentucky fishing regulations.
All Lakes in Carroll County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | General Butler State Park Lake | C | - | 55 µg/L |
Other Counties in Kentucky
See how Carroll 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 Carroll County
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Source: EPA National Aquatic Resource Surveys, 2026.