Suwannee County Lake Quality
Florida, 2 lakes, average grade D (Nutrient-rich)
Only 2 lakes in Suwannee 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 grade is D — water quality issues are persistent across most of the monitored basins. 0 lakes fall into the F bracket outright.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lowref Lake (D) is the cleanest in the county.
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Quick Answers for Suwannee County
Planning a trip? Check special fishing regulations for Lowref Lake — or check the official Florida fishing regulations.
All Lakes in Suwannee County
2 lakes · 1 graded, 1 not rated1 graded lake · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | DLowref LakeSuwannee | D | 2 ft | 73 µg/L | No recent samples | No recent samples | Not recorded |
| NRPeacocklk LakeSuwannee | NR | 2.5 ft | 75.5 µg/L | No recent samples | No recent samples | ✓ Public |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
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Other Counties in Florida
See how Suwannee 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.