B

Cub Lake

Seminole County, FloridaEutrophic

Cub Lake is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water quality is graded B based on 2 sampling years through 2025. Compared to the 167 other monitored lakes in Seminole County, Cub Lake ranks #49 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-07-22. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Murky, only visible to about 6.1 ft. Phosphorus level: 23.5 µg/L. Trophic State Index: 50.

Metric	Value	Grade
Water Clarity (Secchi Depth)	6.1 ft	C
Phosphorus	23.5 µg/L	B
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	50	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #49 of 168 lakes in Seminole County

Cleaner Lakes Within 30 Miles

Cub Lake holds Grade B. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Seminole County

Seminole-Cub Lake

Seminole County

Seminole-Little Bear Lake

Seminole County

Little Bear Lake

Seminole County

Seminole County

Lkhillsssl Lake

Seminole County

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 B Lakes in Florida

Bay-Deer Point Lake

Bay County · Clarity: 4 ft

Brevard-Clear Lake

Brevard County · Clarity: 9.8 ft

Alachua-Santa Fe Painter Canal Lake

Alachua County · Clarity: 5.5 ft

Marion-Deerback Lake

Marion County · Clarity: 7 ft

Hillsborough-Flynn Lake

Hillsborough County · Clarity: 6 ft

Western Lake Middle

Walton County · Clarity: 4 ft

Eutrophic Lakes in Florida

Lake Lancaster West Flagler-Emerald Lake Eastern Lake Outlet Ftt Lake

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-07-22

Monitoring stations: 1

Where to stay near Cub Lake

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