Shelby County Lake Quality
Texas, 2 lakes, average grade (Not rated)
Shelby County has 2 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.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Lake Timpson Northeast of Dam (—); the most-stressed is Lake Timpson Northeast of Dam (—).
Quick Answers for Shelby County
Planning a trip? Check special fishing regulations for Lake Timpson Northeast of Dam — or check the official Texas fishing regulations.
All Lakes in Shelby County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lake Timpson Northeast of Dam | 2 ft | - | |
| 2 | Pinkston Reservoir | 4.9 ft | - |
Other Counties in Texas
See how Shelby County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 36 states and 2 Canadian provinces.
Where to stay near Shelby County
Top-rated places to stay near Shelby County
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Source: EPA National Aquatic Resource Surveys, 2026.