Carroll County Lake Quality
Arkansas, 4 lakes, average grade B (Good)
Only 4 lakes in Carroll 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. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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. Beaver Lake (A) is the cleanest in the county.
Quick Answers for Carroll County
Planning a trip? Check special fishing regulations for Beaver Lake — or check the official Arkansas fishing regulations.
All Lakes in Carroll County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Beaver Lake | A | 20 ft | 6 µg/L |
| 2 | Beaver Lake | A | 19.1 ft | - |
| 3 | Lake Leatherwood | B | - | 30 µg/L |
| 4 | Leatherwood Lake | C | 7 ft | - |
Other Counties in Arkansas
See how Carroll 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 Carroll County
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Source: EPA National Aquatic Resource Surveys, 2026.