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Orange-Down Lake

Orange County, FloridaOligotrophic

Orange-Down Lake is a cold, clear oligotrophic lake in Orange County, Florida. Water quality is graded A based on 2 sampling years through 2025. Compared to the 531 other monitored lakes in Orange County, Orange-Down Lake ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-04-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 14.5 ft. Phosphorus level: 10 µg/L. Trophic State Index: 38.

Metric	Value	Grade
Water Clarity (Secchi Depth)	14.5 ft	A
Phosphorus	10 µg/L	A
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	38	Oligotrophic

Low nutrients, clear water, excellent for swimming

Location

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County Ranking

Ranked #1 of 532 lakes in Orange County

Nearby Lakes in Orange County

Wauseon Bay Lake

Orange-Bessie Lake

Orange-Olivia 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 A Lakes in Florida

Highlands-Sirena Lake

Highlands County · Clarity: 16 ft

Campbell Lake Middle

Walton County · Clarity: 9 ft

Highlands-Verona Lake

Highlands County · Clarity: 13.2 ft

Seminole-Crystal Bowl Lake

Seminole County · Clarity: 11 ft

Seminole-Silver Lake

Seminole County · Clarity: 13 ft

Volusia-Winnemissett Lake

Volusia County · Clarity: 14 ft

Oligotrophic Lakes in Florida

Highlands-Sirena Lake Highlands-Verona Lake Volusia-Winnemissett Lake Bay-St. Andrew Bay Lake

Lake Size & Watershed

Watershed (drainage) area

5 sq mi

Surface area

771 acres

Mean depth (est.)

17.1 ft

Shoreline

6.2 mi

Elevation

89 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: 2025-04-30

Monitoring stations: 3

Where to stay near Orange-Down Lake

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