Lake Starr
Lake Starr in Polk County, Florida has a water quality grade of B (Good). Water clarity: 10.7 ft visibility. Phosphorus: 9 µg/L.
- Clarity
- 10.7 ft
- Typical in August
- 88°F
- Max depth
- ~35 ft est.
- Type
- Oligotrophic
- Trend
- ↑ Improving
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Lake Starr is a cold, clear oligotrophic lake in Polk County, Florida with an estimated average depth of about 35 feet. Water quality is graded B based on 1 sampling years through 2024. Overall water quality is improving over recent sampling years. Compared to the 176 other monitored lakes in Polk County, Lake Starr ranks #98 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-08-19. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
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)
Good clarity, visible to about 10.7 ft. Phosphorus level: 9 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.7 ft | Not graded |
| Phosphorus | 9 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lake Starr
Compare lakeside cabins, hotels, and vacation rentals near Lake Starr in Polk 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 Lake Starr
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Water Temperature
Lake Starr 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 Feb (about 68°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 40 field readings (2010–2024) via the EPA Water Quality Portal. See the full Lake Starr water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~35 ft est. |
| Average Depth | ~16 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 Lake Starr.
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.
Fishing Lake Starr
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.275 m/yr | 3 |
| Phosphorus | → Stable | -0.14 µg/L/yr | 4 |
County Ranking
Ranked #98 of 177 lakes in Polk County
Nearby Lakes in Polk County
Frequently asked questions about Lake Starr
Where is Lake Starr?
- Lake Starr is a lake in Polk County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Starr?
- Lake Starr in Polk County, Florida has a water quality grade of B (Good). Water clarity: 10.7 ft visibility. Phosphorus: 9 µg/L.
Is Lake Starr safe to swim in?
- Good for swimming, clear water with low algae levels. Lake Starr has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Lake Starr?
- Lake Starr typically sits around 88°F at the surface in August, from 40 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
How deep is Lake Starr?
- No published bathymetric survey covers Lake Starr, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 35 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Lake Starr across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Oligotrophic Lakes in Florida
Where this data comes from
30 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples30 samples · 2020–2024
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
Lake size & watershed from HydroLAKES (HydroSHEDS)