Lonoke County Lake Quality
Arkansas, 1 lakes, average grade C (Fair)
Lonoke 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. Lonoke County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.
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 Pickthorne Lake Along Eastern Most Levee. (C); the most-stressed is Pickthorne Lake Along Eastern Most Levee. (C).
Quick Answers for Lonoke County
Planning a trip? Check special fishing regulations for Pickthorne Lake Along Eastern Most Levee. — or check the official Arkansas fishing regulations.
All Lakes in Lonoke County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Pickthorne Lake Along Eastern Most Levee. | C | - | 70 µg/L |
Other Counties in Arkansas
See how Lonoke County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Lonoke County
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Source: EPA National Aquatic Resource Surveys, 2026.