St. Clair County Lake Quality
Alabama, 3 lakes, average grade C (Fair)
Only 3 lakes in St. Clair 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.
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 Logs Lake (C); the most-stressed is Logs Lake (C).
Quick Answers for St. Clair County
Planning a trip? Check special fishing regulations for Logs Lake — or check the official Alabama fishing regulations.
All Lakes in St. Clair County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Logs Lake | C | 4.8 ft | 25 µg/L |
| 2 | Logs Lake | C | 3.3 ft | 29.5 µg/L |
| 3 | Nees Lake | C | 2.7 ft | 35.5 µg/L |
Other Counties in Alabama
See how St. Clair 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 St. Clair County
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Source: EPA National Aquatic Resource Surveys, 2026.