Alfalfa County Lake Quality
Oklahoma, 1 lakes, average grade (Not rated)
Only 1 lakes in Alfalfa 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'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 Great Salt Plains Lake (—); the most-stressed is Great Salt Plains Lake (—).
Quick Answers for Alfalfa County
Planning a trip? Check special fishing regulations for Great Salt Plains Lake — or check the official Oklahoma fishing regulations.
All Lakes in Alfalfa County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Great Salt Plains Lake | 0.7 ft | - |
Other Counties in Oklahoma
See how Alfalfa County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 36 states and 2 Canadian provinces.
Where to stay near Alfalfa County
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Source: EPA National Aquatic Resource Surveys, 2026.