Lake Eustis
Lake County, FloridaEutrophic
Lake Eustis is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 316 other monitored lakes in Lake County, Lake Eustis ranks #251 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-05-14. Grade methodology: LakeGrade methodology.
Watch Lake Eustis water quality
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2.3 ft of visibility. Phosphorus level: 36.5 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | F |
| Phosphorus | 36.5 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #251 of 317 lakes in Lake County
Cleaner Lakes Within 30 Miles
Lake Eustis holds Grade D. 5 nearby lakes hold higher grades.
- BHermosansh LakeLake County · 1.6 mi · Two grade letters higher (D → B)
- CLake-EustisLake County · 0.1 mi · Higher grade (D → C)
- CEustis LakeLake County · 0.4 mi · Higher grade (D → C)
- CEustis LakeLake County · 1.2 mi · Higher grade (D → C)
- CEustis LakeLake County · 1.4 mi · Higher grade (D → C)
Nearby Lakes in Lake County
More Florida Lake Rankings
Other Grade D Lakes in Florida
Eutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-05-14
Monitoring stations: 4
Where to stay near Lake Eustis
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