Lake Roxboro
Caswell County, North CarolinaView mapDirections
NC DEQ publishes the water-quality measurements for Lake Roxboro. Here is what has been measured.
- Hypereutrophic
- 44 ft max depth
Lake Roxboro in Caswell County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 33 µg/L.
Lake Roxboro is a highly nutrient-loaded hypereutrophic lake in Caswell County, North Carolina with an estimated average depth of about 44 feet. Overall water quality is improving over recent sampling years. Compared to the 1 other monitored lakes in Caswell County, Lake Roxboro ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2024-10-22. Methodology: how these readings are compared.
Swimming conditions
Readings onlyAlgae risk
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Roxboro is safe to swim in today is a call for the North Carolina Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Roxboro
These are the measurements NC DEQ publishes for Lake Roxboro, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3 ft of visibility. Phosphorus 30 µg/L. Chlorophyll-a 33 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 30µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 33µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lake Roxboro
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~44 ft est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. North Carolina has not published bathymetry for Lake Roxboro.
Lake Size & Watershed
Watershed (drainage) area
32 sq mi
HydroLAKES / HydroSHEDS
Surface area
462 acres
HydroLAKES / HydroSHEDS
Shoreline
11.2 mi
HydroLAKES / HydroSHEDS
Elevation
499 ft
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.
Stays via Stay22
Stays near Lake Roxboro
Compare lakeside cabins, hotels, and vacation rentals near Lake Roxboro in Caswell County, North Carolina — 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Lake Roxboro are listed below.
Top-rated places to stay near Lake Roxboro
Prices for Oct 23–25, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at North Carolina’s top lakes →
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Fishing Lake Roxboro
Water quality readings over time
2 seasons of samples on record (2022–2024). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Improving-2.5 µg/L/yr2 years
Chlorophyll-a
Improving-6.25 µg/L/yr2 years
Nearby Lakes in Caswell County
Frequently asked questions about Lake Roxboro
Where is Lake Roxboro?
- Lake Roxboro is a lake in Caswell County, North Carolina. Its water-quality measurements are published by NC DEQ and shown on this page as reported.
What is the water quality of Lake Roxboro?
- Lake Roxboro in Caswell County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 33 µg/L.
Is Lake Roxboro safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Roxboro?
- No published bathymetric survey covers Lake Roxboro, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 44 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 Roxboro across LakeQuality
13.1 mi away · cable-pulled, no boat wake
Species activity outlook by water temperature and season
Where to stay at North Carolina's top lakes, each with its readings
North Carolina's cleanest lakes, ranked on agency measurements
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Hypereutrophic Lakes in North Carolina
Where this data comes from
105 measurements from 3 monitoring stations, 2022–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Carolina Dept of Environmental Quality NCDEQ-DWR WQX
21NC03WQ105 samples · 2022–2024
Analytical methods
- WSSSOP
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (3)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)