Dickinson County Lake Quality
Michigan, 13 lakes, average grade A (Excellent)
Dickinson County has 13 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. On average, Dickinson County lakes grade an A. That puts it near the top of the Michigan county ranking.
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. Louis Lake (A) is the cleanest in the county.
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Quick Answers for Dickinson County
Planning a trip? Check special fishing regulations for Louis Lake, whether the fish are safe to eat, and the best times to fish — or check the official Michigan fishing regulations.
Fishing in Dickinson County
All Lakes in Dickinson County
13 lakes · 5 graded, 8 not rated5 graded lakes · 8 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|---|
| 1 | ALouis LakeDickinson | A | 13.5 ft | 8 µg/L | 2.2 µg/L | No recent samples | No recent samples | Not recorded |
| 2 | AMary LakeDickinson | A | 14.5 ft | 8 µg/L | 1.8 µg/L | No recent samples | No recent samples | ✓ Public |
| 3 | ASawyer LakeDickinson | A | 7 ft | 11.5 µg/L | 2.7 µg/L | No recent samples | 20 ft | ✓ Public |
| 4 | AHanbury LakeDickinson | A | 14 ft | 10 µg/L | 2.7 µg/L | No recent samples | No recent samples | ✓ Public |
| 5 | ABass LakeDickinson | A | 21.5 ft | 5 µg/L | 1.3 µg/L | No recent samples | 58 ft | Not recorded |
| NRMoon LakeDickinson | NR | 20 ft | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake AntoineDickinson | NR | 14 ft | No recent samples | No recent samples | No recent samples | 25 ft | ✓ Public | |
| NRHanbury LakeDickinson | NR | 14 ft | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| NRMary LakeDickinson | NR | 14.5 ft | No recent samples | No recent samples | No recent samples | 80 ft | Not recorded | |
| NRHamilton LakeDickinson | NR | 11.8 ft | No recent samples | No recent samples | No recent samples | 31 ft | ✓ Public | |
| NRLouise LakeDickinson | NR | 13.5 ft | No recent samples | No recent samples | No recent samples | 57 ft | Not recorded | |
| NRCarney LakeDickinson | NR | 12 ft | No recent samples | No recent samples | No recent samples | 35 ft | ✓ Public | |
| NRNorway LakeDickinson | NR | 13 ft | No recent samples | No recent samples | No recent samples | 25 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 Dickinson 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.