Caswell County Lake Quality
North Carolina, 2 lakes, average grade D (Poor)
Only 2 lakes in Caswell County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. On average, Caswell County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Farmer Lake (D) is the cleanest in the county.
Quick Answers for Caswell County
Planning a trip? Check special fishing regulations for Farmer Lake — or check the official North Carolina fishing regulations.
All Lakes in Caswell County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Farmer Lake | D | 2.1 ft | 55 µg/L |
| 2 | Lake Roxboro | D | 3 ft | 40 µg/L |
Other Counties in North Carolina
See how Caswell County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 12 states.
Where to stay near Caswell County
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Source: EPA National Aquatic Resource Surveys, 2026.