Nash County Lake Quality
North Carolina, 1 lakes, average grade D (Poor)
Nash County has 1 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. On average, Nash 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. Tar River Reservoir (D) is the cleanest in the county.
Quick Answers for Nash County
Planning a trip? Check special fishing regulations for Tar River Reservoir — or check the official North Carolina fishing regulations.
All Lakes in Nash County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Tar River Reservoir | D | - | 70 µg/L |
Other Counties in North Carolina
See how Nash 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 Nash County
Top-rated places to stay near Nash County
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Source: EPA National Aquatic Resource Surveys, 2026.