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LakeQuality

Sarasota-Lower Myakka Lake

D
Grade D — Nutrient-rich
Nutrient-rich · #28 of 30 lakes in the county · 2.2 ft clear · Hypereutrophic · from F
Hypereutrophic

Sarasota-Lower Myakka Lake in Sarasota County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.2 ft visibility. Phosphorus: 275 µg/L.

Clarity
2.2 ft
Max depth
~21 ft est.
Type
Hypereutrophic
Trend
Improving

Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Sarasota-Lower Myakka Lake

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Sarasota-Lower Myakka Lake is a highly nutrient-loaded hypereutrophic lake in Sarasota County, Florida with an estimated average depth of about 21 feet. Water quality is graded D based on 1 sampling years through 2024. Overall water quality is improving over recent sampling years. Compared to the 29 other monitored lakes in Sarasota County, Sarasota-Lower Myakka Lake ranks #28 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-12-30. Grade methodology: LakeQuality methodology.

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Swimming Safety

Grade only

Elevated nutrients

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum

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Water Quality Grade: D (Nutrient-rich)

Very murky, less than 2.2 ft of visibility. Phosphorus level: 275 µg/L. Trophic State Index: 75.

MetricValueGrade
Water Clarity (Secchi Depth)2.2 ftNot graded
Phosphorus275 µg/LPoor
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)75Hypereutrophic

Very high nutrients, dense algae, poor clarity

Where to stay near Sarasota-Lower Myakka Lake

Compare lakeside cabins, hotels, and vacation rentals near Sarasota-Lower Myakka Lake in Sarasota County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Sarasota-Lower Myakka Lake are listed below.

Top-rated places to stay near Sarasota-Lower Myakka Lake

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Lake Details

CharacteristicValue
Maximum Depth~21 ft est.
Average Depth~8 ft est.

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Sarasota-Lower Myakka Lake.

Lake Size & Watershed

Watershed (drainage) area
246 sq mi
Surface area
467 acres
Shoreline
4.3 mi
Elevation
7 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Fishing Sarasota-Lower Myakka Lake

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable0 m/yr2
Phosphorus Improving-383 µg/L/yr2

EPA Impairment Status

Sarasota-Lower Myakka Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit FL1981 · Official waterbody report · Matched by proximity (0.32 km)

County Ranking

Ranked #28 of 30 lakes in Sarasota County

Nearby Lakes in Sarasota County

Frequently asked questions about Sarasota-Lower Myakka Lake

Where is Sarasota-Lower Myakka Lake?

Sarasota-Lower Myakka Lake is a lake in Sarasota County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Sarasota-Lower Myakka Lake?

Sarasota-Lower Myakka Lake in Sarasota County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.2 ft visibility. Phosphorus: 275 µg/L.

Is Sarasota-Lower Myakka Lake safe to swim in?

Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Sarasota-Lower Myakka Lake has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.

How deep is Sarasota-Lower Myakka Lake?

No published bathymetric survey covers Sarasota-Lower Myakka Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 21 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

32 measurements from 3 monitoring stations, 2023–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX32 samples · 2023–2024
Monitoring station identifiers (3)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Lake size & watershed from HydroLAKES (HydroSHEDS)