Hillsborough-Dead Lady Lake
Hillsborough County, FloridaEutrophic
Hillsborough-Dead Lady Lake is a productive, nutrient-rich eutrophic lake in Hillsborough County, Florida. Water quality is graded C based on 2 sampling years through 2025. Compared to the 221 other monitored lakes in Hillsborough County, Hillsborough-Dead Lady Lake ranks #78 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-03-28. Grade methodology: LakeGrade methodology.
Watch Hillsborough-Dead Lady Lake water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5 ft. Phosphorus level: 40 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | C |
| Phosphorus | 40 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #78 of 222 lakes in Hillsborough County
Cleaner Lakes Within 30 Miles
Hillsborough-Dead Lady Lake holds Grade C. 4 nearby lakes hold higher grades.
- AHillsborough-Elizabeth LakeHillsborough County · 0.2 mi · Two grade letters higher (C → A)
- AHillsborough-Mound LakeHillsborough County · 0.5 mi · Two grade letters higher (C → A)
- BWoodctr LakeHillsborough County · 0.4 mi · Higher grade (C → B)
- BHillsborough-Hiawatha LakeHillsborough County · 1 mi · Higher grade (C → B)
Nearby Lakes in Hillsborough County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 ft
Walton County · Clarity: 4.2 ft
Seminole County · Clarity: 4.5 ft
Seminole County · Clarity: 2.9 ft
Polk County · Clarity: 3.5 ft
Volusia County · Clarity: 4.5 ft
Eutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-03-28
Monitoring stations: 3
Where to stay near Hillsborough-Dead Lady Lake
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