Sequatchie County Lake Quality
Tennessee, 1 lakes, average grade C (Fair)
Sequatchie County has 1 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. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
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 Alex Branch Lake (C); the most-stressed is Alex Branch Lake (C).
Quick Answers for Sequatchie County
Planning a trip? Check special fishing regulations for Alex Branch Lake — or check the official Tennessee fishing regulations.
All Lakes in Sequatchie County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Alex Branch Lake | C | - | 55.9 µg/L |
Other Counties in Tennessee
See how Sequatchie 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 Sequatchie County
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Source: EPA National Aquatic Resource Surveys, 2026.