F

Apopka Lake

Orange County, FloridaHypereutrophic

Apopka Lake is a highly nutrient-loaded hypereutrophic lake in Orange County, Florida. Water quality is graded F based on 2 sampling years through 2025. Compared to the 531 other monitored lakes in Orange County, Apopka Lake ranks #510 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-03-24. Grade methodology: LakeGrade methodology.

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Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 1.6 ft of visibility. Phosphorus level: 202.5 µg/L. Trophic State Index: 75.

Metric	Value	Grade
Water Clarity (Secchi Depth)	1.6 ft	F
Phosphorus	202.5 µg/L	F
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	75	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Location

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County Ranking

Ranked #510 of 532 lakes in Orange County

Cleaner Lakes Within 30 Miles

Apopka Lake holds Grade F. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Orange County

Orange-Black Lake

More Florida Lake Rankings

Cleanest lakes in Florida

Top 25 by overall water quality score

Best swimming lakes in Florida

Grade A/B + low algae filter

Family fishing lakes in Florida

Panfish-rich, public access

All Florida lakes

Full state directory

Other Grade F Lakes in Florida

Polk-Little Bass Lake

Polk County · Clarity: 1.3 ft

Polk-Big Bass Lake

Polk County · Clarity: 1 ft

Alachua-Wauberg Lake

Alachua County · Clarity: 2.4 ft

Hillsborough County · Clarity: 1.3 ft

Volusia Lake George @ N of Center

Volusia County · Clarity: 2 ft

Brevard County · Clarity: 1.6 ft

Hypereutrophic Lakes in Florida

Polk-Little Bass Lake Alicetst Lake Polk-Big Bass Lake Lake Roberta

Lake Size & Watershed

Watershed (drainage) area

161 sq mi

Surface area

30,471 acres

Mean depth (est.)

35.4 ft

Shoreline

35 mi

Elevation

56 ft

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: 2025-03-24

Monitoring stations: 3

Where to stay near Apopka Lake

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