F

Lake Monroe

Volusia County, FloridaHypereutrophic

Lake Monroe is a highly nutrient-loaded hypereutrophic lake in Volusia County, Florida. Water quality is graded F based on 2 sampling years through 2023. Compared to the 76 other monitored lakes in Volusia County, Lake Monroe ranks #73 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2023-05-24. 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 2.5 ft of visibility. Phosphorus level: 239 µg/L. Trophic State Index: 74.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.5 ft	F
Phosphorus	239 µg/L	F
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	74	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Location

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County Ranking

Ranked #73 of 77 lakes in Volusia County

Cleaner Lakes Within 30 Miles

Lake Monroe holds Grade F. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Volusia County

Gleasoncen 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

Brevard County · Clarity: 1.6 ft

Highlands-Wolf Lake

Highlands County · Clarity: 1 ft

Hypereutrophic Lakes in Florida

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

Lake Size & Watershed

Watershed (drainage) area

2,743 sq mi

Surface area

8,199 acres

Mean depth (est.)

20 ft

Shoreline

19.1 mi

Elevation

-10 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: 2023-05-24

Monitoring stations: 4

Where to stay near Lake Monroe

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