Lake Minnehaha
Lake Minnehaha in Orange County, Florida has a water quality grade of B (Good). Water clarity: 2.1 ft visibility. Phosphorus: 29.5 µg/L.
- Clarity
- 2.1 ft
- Typical in August
- 89°F
- Max depth
- ~41 ft est.
- Type
- Eutrophic
- Trend
- ↓ Declining
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Lake Minnehaha is a productive, nutrient-rich eutrophic lake in Orange County, Florida with an estimated average depth of about 41 feet. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 319 other monitored lakes in Orange County, Lake Minnehaha ranks #240 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-09-23. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyBacteria A
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.
Based on E. coli testing, Lake Minnehaha never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 44 samples across 4 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.
Water Quality Grade: B (Good)
Very murky, less than 2.1 ft of visibility. Phosphorus level: 29.5 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft | Not graded |
| Phosphorus | 29.5 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Minnehaha
Compare lakeside cabins, hotels, and vacation rentals near Lake Minnehaha in Orange 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 Minnehaha
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Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Lake Minnehaha typically sits around 89°F at the surface in August. Summer average is about 87°F. Usually warmest in Aug (about 89°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 81 field readings (2010–2025) via the EPA Water Quality Portal. See the full Lake Minnehaha water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~41 ft est. |
| Average Depth | ~11 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 Minnehaha.
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 Minnehaha
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.161 m/yr | 6 |
| Phosphorus | ↓ Declining | +3.25 µg/L/yr | 6 |
EPA Impairment Status
Lake Minnehaha is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Source: EPA ATTAINS assessment unit FL29976 · Official waterbody report · Matched by proximity (1.27 km)
County Ranking
Ranked #240 of 320 lakes in Orange County
Nearby Lakes in Orange County
Frequently asked questions about Lake Minnehaha
Where is Lake Minnehaha?
- Lake Minnehaha is a lake in Orange 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 Minnehaha?
- Lake Minnehaha in Orange County, Florida has a water quality grade of B (Good). Water clarity: 2.1 ft visibility. Phosphorus: 29.5 µg/L.
Is Lake Minnehaha safe to swim in?
- Based on E. coli testing, Lake Minnehaha never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 44 samples across 4 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Lake Minnehaha has a water quality grade of B (Good). Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.
What is the water temperature of Lake Minnehaha?
- Lake Minnehaha typically sits around 89°F at the surface in August, from 81 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Lake Minnehaha?
- No published bathymetric survey covers Lake Minnehaha, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 41 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 Minnehaha across LakeQuality
Planning a trip around Canaveral?
Lake Minnehaha is about 38 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
142 measurements from 2 monitoring stations, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples88 samples · 2022–2025
- Submitting organization not recorded for these samples54 samples · 2023–2024
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
Lake size & watershed from HydroLAKES (HydroSHEDS)