Cheboygan County Lake Quality
Michigan, 8 lakes, average grade A (Excellent)
Cheboygan County has 8 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. The county's average grade is A — among the cleanest in Michigan. 1 lakes pull an A on their own, and almost none fall into the D or F brackets.
Many of the county's lakes are deep glacial basins — over 50 feet at their deepest point — which gives them thermal stratification and a buffer against summer warming. Black Lake (grade A) is the cleanest in the county.
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Quick Answers for Cheboygan County
Planning a trip? Check special fishing regulations for Black Lake — or check the official Michigan fishing regulations.
Fishing in Cheboygan County
All Lakes in Cheboygan County
8 lakes · 1 graded, 7 not rated1 graded lake · 7 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | ABlack LakeCheboygan | A | 13 ft | 10 µg/L | 1.8 µg/L | No recent samples | No recent samples | ✓ Public |
| NRSilver LakeCheboygan | NR | 12.5 ft | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRSilver LakeCheboygan | NR | 12.5 ft | 8 µg/L | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBurt LakeCheboygan | NR | 15.5 ft | No recent samples | No recent samples | No recent samples | 73 ft | ✓ Public | |
| NRSilver LakeCheboygan | NR | 32 ft | No recent samples | No recent samples | No recent samples | 91 ft | ✓ Public | |
| NRMullett LakeCheboygan | NR | 13 ft | No recent samples | No recent samples | No recent samples | 120 ft | ✓ Public | |
| NRLong LakeCheboygan | NR | 18 ft | No recent samples | No recent samples | No recent samples | 61 ft | ✓ Public | |
| NRDouglas LakeCheboygan | NR | 12 ft | No recent samples | No recent samples | No recent samples | 80 ft | ✓ Public |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Michigan
See how Cheboygan County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 49 states and 2 Canadian provinces.
Source: EPA National Aquatic Resource Surveys, 2026.