Garden County Lake Quality
Nebraska, 5 lakes, average grade F (Very Poor)
Garden County has 5 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 average is F — the most-stressed bracket in our rubric. Most monitored lakes here show persistent nutrient loading and algal pressure.
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 Nla Lake (C); the most-stressed is Nla Lake (F).
Quick Answers for Garden County
Planning a trip? Check special fishing regulations for Nla Lake — or check the official Nebraska fishing regulations.
All Lakes in Garden County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Nla Lake | C | - | 71.3 µg/L |
| 2 | Nla Lake | D | 1.1 ft | 138573.9 µg/L |
| 3 | Nla Lake | F | 0.1 ft | 3636000 µg/L |
| 4 | Nla Lake | F | 0.7 ft | 358.6 µg/L |
| 5 | Crescent Lake | F | 0.8 ft | 132.5 µg/L |
Other Counties in Nebraska
See how Garden 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 Garden County
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Source: EPA National Aquatic Resource Surveys, 2026.