Davidson County Lake Quality
North Carolina, 2 lakes, average grade D (Poor)
Only 2 lakes in Davidson 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, Davidson 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. Lake Thom-A-Lex (D) is the cleanest in the county.
Quick Answers for Davidson County
Planning a trip? Check special fishing regulations for Lake Thom-A-Lex — or check the official North Carolina fishing regulations.
All Lakes in Davidson County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lake Thom-A-Lex | D | - | 55 µg/L |
| 2 | High Rock Lake | D | - | 50 µg/L |
Other Counties in North Carolina
See how Davidson 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 Davidson County
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Source: EPA National Aquatic Resource Surveys, 2026.