Baker County Lake Quality
Oregon, 6 lakes, average grade D (Poor)
Only 6 lakes in Baker 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. On average, Baker County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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 Phillips Lake (B); the most-stressed is Brownlee Reservoir (F).
Quick Answers for Baker County
Planning a trip? Check special fishing regulations for Phillips Lake — or check the official Oregon fishing regulations.
All Lakes in Baker County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Phillips Lake | B | 5.9 ft | 17.5 µg/L |
| 2 | Phillps Lake | C | - | - |
| 3 | Unity Reservoir | C | - | - |
| 4 | Brownlee Reservoir | F | - | - |
Other Counties in Oregon
See how Baker County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 27 states.
Where to stay near Baker County
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Source: EPA National Aquatic Resource Surveys, 2026.