Oscoda County Lake Quality
Michigan, 3 lakes, average grade A (Excellent)
Only 3 lakes in Oscoda 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, Oscoda County lakes grade an A. That puts it near the top of the Michigan county ranking.
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 Loon Lake (B); the most-stressed is Loon Lake (B).
Quick Answers for Oscoda County
Planning a trip? Check special fishing regulations for Loon Lake, whether the fish are safe to eat, and the best times to fish — or check the official Michigan fishing regulations.
All Lakes in Oscoda County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Loon Lake | B | 14.5 ft | - |
Other Counties in Michigan
See how Oscoda County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 15 states.
Where to stay near Oscoda County
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Source: EPA National Aquatic Resource Surveys, 2026.