Pierce County Lake Quality
Nebraska, 1 lakes, average grade F (Very Poor)
Only 1 lakes in Pierce 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 average is F — the most-stressed bracket in our rubric. Most monitored lakes here show persistent nutrient loading and algal pressure.
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. Willow Creek Reservoir (F) is the cleanest in the county.
Quick Answers for Pierce County
Planning a trip? Check special fishing regulations for Willow Creek Reservoir — or check the official Nebraska fishing regulations.
All Lakes in Pierce County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Willow Creek Reservoir | F | 1.3 ft | - |
Other Counties in Nebraska
See how Pierce 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 Pierce County
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Source: EPA National Aquatic Resource Surveys, 2026.