Gulf County Lake Quality
Florida, 3 lakes, average grade B (Good)
Gulf County has 3 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-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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. Dead Lakes West Arm (B) is the cleanest in the county.
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Quick Answers for Gulf County
Planning a trip? Check special fishing regulations for Dead Lakes West Arm — or check the official Florida fishing regulations.
All Lakes in Gulf County
3 lakes · 2 graded, 1 not rated2 graded lakes · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | BDead Lakes West ArmGulf | B | 3.9 ft | 16 µg/L | No recent samples | No recent samples | ✓ Public |
| 2 | BDead LakeGulf | B | 3 ft | 25.5 µg/L | No recent samples | No recent samples | ✓ Public |
| NRLake Wimico MiddleGulf | NR | 4.1 ft | 24 µg/L | No recent samples | No recent samples | Not recorded |
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.
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 Florida
See how Gulf 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.