Lake Catherine
Seminole County, FloridaEutrophic
Lake Catherine is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water quality is graded B based on 2 sampling years through 2025. Compared to the 167 other monitored lakes in Seminole County, Lake Catherine ranks #50 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-06-02. Grade methodology: LakeGrade methodology.
Watch Lake Catherine water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.2 ft. Phosphorus level: 43 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.2 ft | B |
| Phosphorus | 43 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #50 of 168 lakes in Seminole County
Cleaner Lakes Within 30 Miles
Lake Catherine holds Grade B. 2 nearby lakes hold higher grades.
- BSeminole-Crescent LakeSeminole County · 0.7 mi · Higher overall water quality score
- BKiwanis Lake South of CenterSeminole County · 1.5 mi · Higher overall water quality score
Nearby Lakes in Seminole County
More Florida Lake Rankings
Other Grade B Lakes in Florida
Bay County · Clarity: 4 ft
Brevard County · Clarity: 9.8 ft
Alachua County · Clarity: 5.5 ft
Marion County · Clarity: 7 ft
Hillsborough County · Clarity: 6 ft
Walton County · Clarity: 4 ft
Eutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-06-02
Monitoring stations: 1
Where to stay near Lake Catherine
Compare lakeside cabins, hotels, and vacation rentals near Lake Catherine in Seminole County, Florida — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.