Lake County Lake Quality
Oregon, 5 lakes, average grade (Not rated)
Lake 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.
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. Pond (—) is the cleanest in the county.
Quick Answers for Lake County
Planning a trip? Check special fishing regulations for Pond — or check the official Oregon fishing regulations.
All Lakes in Lake County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Pond | - | 60 µg/L | |
| 2 | Hart Lake | - | - | |
| 3 | Lake Abert | - | - | |
| 4 | Pelican Lake | - | - | |
| 5 | Crump Lake | - | - |
Other Counties in Oregon
See how Lake 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 Lake County
Top-rated places to stay near Lake County
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Source: EPA National Aquatic Resource Surveys, 2026.