Bay County Lake Quality
Michigan, 2 lakes, average grade C (Fair)
Bay County has 2 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. Bay County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.
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 a leading lake (—); the most-stressed is a stressed lake (—).
Quick Answers for Bay County
All Lakes in Bay County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|
Other Counties in Michigan
See how Bay 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 Bay County
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Source: EPA National Aquatic Resource Surveys, 2026.