High Rock Lake is a productive, nutrient-rich eutrophic lake in Davidson County, North Carolina. Water quality is graded D based on 2 sampling years through 2021. Compared to the 1 other monitored lakes in Davidson County, High Rock Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2021-09-13. Grade methodology: LakeGrade methodology.
Watch High Rock Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
No clarity data. Phosphorus level: 50 µg/L. Chlorophyll-a: 41.5 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 50 µg/L | C |
| Chlorophyll-a (Algae) | 41.5 µg/L | F |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near High Rock Lake
Compare lakeside cabins, hotels, and vacation rentals near High Rock Lake in Davidson County, North Carolina — live availability and prices for your trip.
Top-rated places to stay near High Rock Lake
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 High Rock Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near High Rock Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing High Rock Lake
Location
County Ranking
Ranked #2 of 2 lakes in Davidson County
Cleaner Lakes Within 30 Miles
High Rock Lake holds Grade D. 4 nearby lakes hold higher grades.
- BFalls LakeMontgomery County · 19.6 mi · Two grade letters higher (D → B)
- CTuckertown ReservoirRowan County · 9.6 mi · Higher grade (D → C)
- CBadin LakeMontgomery County · 16.4 mi · Higher grade (D → C)
- CLake FisherCabarrus County · 19.3 mi · Higher grade (D → C)
Nearby Lakes in Davidson County
Explore High Rock Lake 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 D Lakes in North Carolina
Eutrophic 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: 2021-09-13
Monitoring stations: 8