Martin County Lake Quality
Florida, 3 lakes, average grade D (Nutrient-rich)
Martin 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. On average, Martin County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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 Kitching Creek Stormwater Basin Effluent Lake (C); the most-stressed is Lake Okeechobee (D).
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Quick Answers for Martin County
Planning a trip? Check special fishing regulations for Kitching Creek Stormwater Basin Effluent Lake — or check the official Florida fishing regulations.
All Lakes in Martin County
3 lakes3 graded lakes
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | CKitching Creek Stormwater Basin Effluent LakeMartin | C | No recent samples | 59 µg/L | No recent samples | No recent samples | Not recorded |
| 2 | DLake OkeechobeeMartin | D | 1 ft | 175 µg/L | 22.8 µg/L | No recent samples | ✓ Public |
| 3 | DEastshore LakeMartin | D | 1 ft | 124 µg/L | No recent samples | 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 Florida
See how Martin 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.