Stone County Lake Quality
Mississippi, 2 lakes, average grade B (Good)
Stone 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. With an average grade of B, Stone County sits comfortably above the Mississippi median.
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 Lake Toc-O-Leen (B); the most-stressed is Flint Creek Reservoir (C).
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Quick Answers for Stone County
Planning a trip? Check special fishing regulations for Lake Toc-O-Leen — or check the official Mississippi fishing regulations.
All Lakes in Stone County
2 lakes2 graded lakes
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | BLake Toc-O-LeenStone | B | 4.8 ft | 40 µg/L | 11.7 µg/L | No recent samples | Not recorded |
| 2 | CFlint Creek ReservoirStone | C | 6.4 ft | 95 µg/L | 6 µg/L | No recent samples | Not recorded |
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Mississippi
See how Stone County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 49 states and 2 Canadian provinces.
Source: EPA National Aquatic Resource Surveys, 2026.