Clay-Deer Lake
Clay County, FloridaOligotrophic
Clay-Deer Lake is a cold, clear oligotrophic lake in Clay County, Florida. Water quality is graded A based on 2 sampling years through 2025. Compared to the 24 other monitored lakes in Clay County, Clay-Deer Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-04-09. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 20 ft down. Phosphorus level: 8 µg/L. Trophic State Index: 34.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 20 ft | A |
| Phosphorus | 8 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #3 of 25 lakes in Clay County
Nearby Lakes in Clay County
More Florida Lake Rankings
Other Grade A Lakes in Florida
Highlands County · Clarity: 16 ft
Walton County · Clarity: 9 ft
Highlands County · Clarity: 13.2 ft
Seminole County · Clarity: 11 ft
Seminole County · Clarity: 13 ft
Orange County · Clarity: 11.5 ft
Oligotrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-04-09
Monitoring stations: 2
Where to stay near Clay-Deer Lake
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