Mesotrophic Lakes in Kentucky
15 mesotrophic lakes in Kentucky. Moderate nutrients, good water quality.
Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 15 lakes in Kentucky sit in the mesotrophic band. About 0% are deep (50+ ft); the rest are shallower basins where watershed management keeps nutrients from pushing the system into eutrophy.
Mesotrophic lakes tend to grade B or C on our A–F scale — the productive-but-clear band lines up with the middle of the letter grades.
| # | Lake | County | Grade | Clarity | Depth | TSI |
|---|---|---|---|---|---|---|
| 1 | Grayson Lake | Carter | B | - | - | 46 |
| 2 | Cedar Creek Lake | Lincoln | B | - | - | 41 |
| 3 | Stanford Reservoir | Lincoln | B | - | - | 44 |
| 4 | Lake Malone | Logan | B | - | - | 50 |
| 5 | Loch Mary Reservoir | Hopkins | B | - | - | 49 |
| 6 | Shanty Hollow Lake | Warren | B | - | - | 46 |
| 7 | Grapevine Lake | Hopkins | B | - | - | 45 |
| 8 | Island Lake | Ohio | B | - | - | 50 |
| 9 | Luzerne Lake | Muhlenberg | B | - | - | 48 |
| 10 | South Lake | Ohio | B | - | - | 46 |
| 11 | Goose Lake | Muhlenberg | B | - | - | 45 |
| 12 | Rough River Lake | Breckinridge | C | 6.4 ft | - | 48 |
| 13 | Paintsville Lake | Johnson | C | - | - | 47 |
| 14 | Dewey Lake | Floyd | C | - | - | 48 |
| 15 | Lake Blythe | Christian | C | - | - | 49 |
All mesotrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Utah version →Washington version →Wyoming version →Georgia version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Kentucky lakes →
Source: EPA National Aquatic Resource Surveys, 2026.