Charlotte-Sturgeon Lake
Charlotte-Sturgeon Lake in Charlotte County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.5 ft visibility. Phosphorus: 68 µg/L.
- Clarity
- 2.5 ft
- Type
- Eutrophic
- Trend
- ↑ Improving
- Public access
- Yes
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Charlotte-Sturgeon Lake →
Next lake in Charlotte County
Swipe left or right on this bar to open the next or previous lake.
Charlotte-Sturgeon Lake is a productive, nutrient-rich eutrophic lake in Charlotte County, Florida. Water quality is graded D 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 14 other monitored lakes in Charlotte County, Charlotte-Sturgeon Lake ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-09-01. Grade methodology: LakeQuality methodology.
Watch Charlotte-Sturgeon Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyElevated 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
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 2.5 ft of visibility. Phosphorus level: 68 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | Not graded |
| Phosphorus | 68 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Charlotte-Sturgeon Lake
Compare lakeside cabins, hotels, and vacation rentals near Charlotte-Sturgeon Lake in Charlotte 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 Charlotte-Sturgeon Lake are listed below.
Top-rated places to stay near Charlotte-Sturgeon Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Florida’s top lakes →
Recreation & Access
- Ainger Creek Park Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Charlotte-Sturgeon Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.075 m/yr | 3 |
| Phosphorus | ↑ Improving | -3 µg/L/yr | 3 |
EPA Impairment Status
Charlotte-Sturgeon Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2067 · Official waterbody report · Matched by proximity (1.97 km)
County Ranking
Ranked #13 of 15 lakes in Charlotte County
Nearby Lakes With Higher Grades
Charlotte-Sturgeon Lake holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Charlotte County
Frequently asked questions about Charlotte-Sturgeon Lake
Where is Charlotte-Sturgeon Lake?
- Charlotte-Sturgeon Lake is a lake in Charlotte County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Charlotte-Sturgeon Lake?
- Charlotte-Sturgeon Lake in Charlotte County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.5 ft visibility. Phosphorus: 68 µg/L.
Is Charlotte-Sturgeon 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. Charlotte-Sturgeon Lake has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
Are there boat ramps on Charlotte-Sturgeon Lake?
- Charlotte-Sturgeon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Ainger Creek Park Public Boat Ramp. Public access is listed as yes.
Explore Charlotte-Sturgeon Lake across LakeQuality
More Florida Lake Rankings
Other Grade D Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
112 measurements from 2 monitoring stations, 2022–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX112 samples · 2022–2024
Monitoring station identifiers (2)
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
Named boat-access points from the USGS National Boat Ramps inventory