Jefferson County Lake Quality
Oklahoma, 2 lakes, average grade (Not rated)
Only 2 lakes in Jefferson 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 Waurika Lake (—); the most-stressed is Waurika Lake (—).
Quick Answers for Jefferson County
Planning a trip? Check special fishing regulations for Waurika Lake — or check the official Oklahoma fishing regulations.
All Lakes in Jefferson County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Waurika Lake | 1.6 ft | - | |
| 2 | Jap Beaver Lake | 1.9 ft | - |
Other Counties in Oklahoma
See how Jefferson 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 Jefferson County
Top-rated places to stay near Jefferson County
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Source: EPA National Aquatic Resource Surveys, 2026.