Thorpe Reservoir is a mesotrophic lake in Jackson County, North Carolina. Water quality is graded B based on 2 sampling years through 2024. Compared to the 2 other monitored lakes in Jackson County, Thorpe Reservoir ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2024-11-06. Grade methodology: LakeGrade methodology.
Watch Thorpe Reservoir 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 8.7 ft. Chlorophyll-a: 6.3 µg/L. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.7 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 6.3 µg/L | B |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Thorpe Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Thorpe Reservoir in Jackson County, North Carolina — live availability and prices for your trip.
Top-rated places to stay near Thorpe Reservoir
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 trip to Thorpe Reservoir?
Get lake water-quality report cards plus the best cabin & lodging deals near Thorpe Reservoir — straight to your inbox. No spam, unsubscribe anytime.
Fishing Thorpe Reservoir
Location
County Ranking
Ranked #3 of 3 lakes in Jackson County
Cleaner Lakes Within 30 Miles
Thorpe Reservoir holds Grade B. 3 nearby lakes hold higher grades.
- AWolf Creek ReservoirJackson County · 9.3 mi · Higher grade (B → A)
- ANantahala LakeMacon County · 29.3 mi · Higher grade (B → A)
- BBear Creek ReservoirJackson County · 6.4 mi · Higher overall water quality score
Nearby Lakes in Jackson County
Explore Thorpe Reservoir across LakeGrade
More North Carolina Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade B Lakes in North Carolina
Mesotrophic Lakes in North Carolina
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-11-06
Monitoring stations: 4