Lake Minnie
Lake Minnie in Seminole County, Florida has a water quality grade of C (Fair). Water clarity: 2.3 ft visibility. Phosphorus: 51 µg/L.
- Clarity
- 2.3 ft
- Type
- Eutrophic
- Trend
- ↑ Improving
Next lake in Seminole County
Swipe left or right on this bar to open the next or previous lake.
Lake Minnie is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water quality is graded C based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Lake Minnie ranks #111 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-16. Grade methodology: LakeQuality methodology.
Watch Lake Minnie water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyBacteria advisory
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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Very murky, less than 2.3 ft of visibility. Phosphorus level: 51 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | Not graded |
| Phosphorus | 51 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Minnie
Compare lakeside cabins, hotels, and vacation rentals near Lake Minnie in Seminole 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 Minnie
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 →
Fishing Lake Minnie
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.02 m/yr | 6 |
| Phosphorus | ↑ Improving | -3.83 µg/L/yr | 6 |
EPA Impairment Status
Lake Minnie 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 FL2984 · Official waterbody report · Matched by proximity (0.93 km)
County Ranking
Ranked #111 of 122 lakes in Seminole County
Nearby Lakes With Higher Grades
Lake Minnie holds Grade C. 2 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Seminole County
Frequently asked questions about Lake Minnie
Where is Lake Minnie?
- Lake Minnie is a lake in Seminole County, Florida. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Minnie?
- Lake Minnie in Seminole County, Florida has a water quality grade of C (Fair). Water clarity: 2.3 ft visibility. Phosphorus: 51 µg/L.
Is Lake Minnie safe to swim in?
- Generally safe for swimming, moderate water quality. Lake Minnie has a water quality grade of C (Fair). Always check local health department advisories before swimming.
Explore Lake Minnie across LakeQuality
Planning a trip around Canaveral?
Lake Minnie is about 33 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 C Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
16 measurements from 3 monitoring stations, 2023–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples8 samples · 2023–2025
- Submitting organization not recorded for these samples8 samples · 2025
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