Randolph County Lake Quality
Alabama, 4 lakes, average grade B (Good)
Only 4 lakes in Randolph 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-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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 Mare Lake (A); the most-stressed is Rlhr Lake (C).
Quick Answers for Randolph County
Planning a trip? Check special fishing regulations for Mare Lake — or check the official Alabama fishing regulations.
All Lakes in Randolph County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Mare Lake | A | 11.5 ft | 12 µg/L |
| 2 | Rlhr Lake | B | 8.5 ft | 10 µg/L |
| 3 | Rlhr Lake | C | 5 ft | 25 µg/L |
Other Counties in Alabama
See how Randolph 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 Randolph County
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Source: EPA National Aquatic Resource Surveys, 2026.