Alligator Lake
Alligator Lake in Osceola County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.4 ft visibility.
- Clarity
- 4.4 ft
- Typical in August
- 88°F
- Trend
- ↓ Declining
- Public access
- Yes
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Why Alligator Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Alligator Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Alligator Lake is a lake in Osceola County, Florida. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-10-23. Grade methodology: LakeQuality methodology.
Watch Alligator Lake water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Alligator Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 4.4 ft. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.4 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Alligator Lake
Compare lakeside cabins, hotels, and vacation rentals near Alligator Lake in Osceola 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 Alligator Lake
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Water Temperature
Alligator Lake typically sits around 88°F at the surface in August. Summer average is about 88°F. Usually warmest in Aug (about 88°F) and coldest in Jan (about 66°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 22 field readings (2016–2023) via the EPA Water Quality Portal. See the full Alligator Lake water temperature breakdown →
Recreation & Access
- C-33 Access AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Alligator Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.96 m/yr | 5 |
| Phosphorus | ↓ Declining | +1.9 µg/L/yr | 5 |
EPA Impairment Status
Alligator Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL3176 · Official waterbody report
Graded lakes near Alligator Lake
Alligator Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Osceola County
Frequently asked questions about Alligator Lake
Where is Alligator Lake?
- Alligator Lake is a lake in Osceola County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Alligator Lake?
- Alligator Lake in Osceola County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.4 ft visibility.
Is Alligator Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Alligator Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Alligator Lake?
- Alligator Lake typically sits around 88°F at the surface in August, from 22 EPA Water Quality Portal field readings (2016–2023). That is a typical value for the month, not a live reading.
Are there boat ramps on Alligator Lake?
- Alligator Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include C-33 Access Area. Public access is listed as yes.
Explore Alligator Lake across LakeQuality
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Where this data comes from
6 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples6 samples · 2023
Monitoring station identifiers (1)
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