Highlands-Little Bonnet Lake
Highlands-Little Bonnet Lake in Highlands County, Florida has a water quality grade of B (Good). Water clarity: 2 ft visibility. Phosphorus: 24 µg/L.
- Clarity
- 2 ft
- Max depth
- ~54 ft est.
- Type
- Eutrophic
- Trend
- ↑ Improving
- Public access
- Yes
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Highlands-Little Bonnet Lake is a productive, nutrient-rich eutrophic lake in Highlands County, Florida with an estimated average depth of about 54 feet. Water quality is graded B based on 1 sampling years through 2024. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 72 other monitored lakes in Highlands County, Highlands-Little Bonnet Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-12-17. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLow algae
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.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Very murky, less than 2 ft of visibility. Phosphorus level: 24 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Not graded |
| Phosphorus | 24 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Highlands-Little Bonnet Lake
Compare lakeside cabins, hotels, and vacation rentals near Highlands-Little Bonnet Lake in Highlands 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.
Top-rated places to stay near Highlands-Little Bonnet Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~54 ft est. |
| Average Depth | ~11 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Highlands-Little Bonnet Lake.
Lake Size & Watershed
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.
Recreation & Access
- Little Lake Bonnet Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Highlands-Little Bonnet Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.28 m/yr | 5 |
| Phosphorus | → Stable | -0.3 µg/L/yr | 5 |
EPA Impairment Status
Highlands-Little Bonnet Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1813G · Official waterbody report · Matched by proximity (0.07 km)
County Ranking
Ranked #9 of 73 lakes in Highlands County
Nearby Lakes in Highlands County
Frequently asked questions about Highlands-Little Bonnet Lake
Where is Highlands-Little Bonnet Lake?
- Highlands-Little Bonnet Lake is a lake in Highlands County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Highlands-Little Bonnet Lake?
- Highlands-Little Bonnet Lake in Highlands County, Florida has a water quality grade of B (Good). Water clarity: 2 ft visibility. Phosphorus: 24 µg/L.
Is Highlands-Little Bonnet Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Highlands-Little Bonnet Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Highlands-Little Bonnet Lake?
- No published bathymetric survey covers Highlands-Little Bonnet Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 54 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Highlands-Little Bonnet Lake?
- Highlands-Little Bonnet Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Little Lake Bonnet Public Boat Ramp. Public access is listed as yes.
Explore Highlands-Little Bonnet Lake across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
135 measurements from 3 monitoring stations, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX135 samples · 2020–2024
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)
Named boat-access points from the USGS National Boat Ramps inventory