Carlisle County Lake Quality
Kentucky, 2 lakes, average grade D (Poor)
Carlisle County has 2 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. On average, Carlisle County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Forked Lake (D); the most-stressed is Fish Lake (F).
Quick Answers for Carlisle County
Planning a trip? Check special fishing regulations for Forked Lake — or check the official Kentucky fishing regulations.
All Lakes in Carlisle County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Forked Lake | D | - | 83.5 µg/L |
| 2 | Fish Lake | F | - | 189 µg/L |
Other Counties in Kentucky
See how Carlisle 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 Carlisle County
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Source: EPA National Aquatic Resource Surveys, 2026.