Churchill County Lake Quality
Nevada, 5 lakes, average grade D (Poor)
Only 5 lakes in Churchill 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 grade is D — water quality issues are persistent across most of the monitored basins. 1 lakes fall into the F bracket outright.
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. Lahontan Reservoir Narrows Outlet (C) is the cleanest in the county.
Quick Answers for Churchill County
Planning a trip? Check special fishing regulations for Lahontan Reservoir Narrows Outlet — or check the official Nevada fishing regulations.
All Lakes in Churchill County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lahontan Reservoir Narrows Outlet | C | - | 250 µg/L |
| 2 | Lahontan Reservoir | C | - | 190 µg/L |
| 3 | Nla Lake | C | 1.4 ft | 173000 µg/L |
| 4 | Lahontan Reservoir | C | - | 170 µg/L |
| 5 | Soda Lake Edge Sample Away From Tufa | F | - | 4800 µg/L |
Other Counties in Nevada
See how Churchill 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 Churchill County
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Source: EPA National Aquatic Resource Surveys, 2026.