Presque Isle County Lake Quality
Wisconsin, 4 lakes, average grade A (Excellent)
Presque Isle County has 4 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. 4 lakes pull an A on their own, and almost none fall into the D or F brackets.
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. Hu54m Lake (A) is the cleanest in the county.
Quick Answers for Presque Isle County
Planning a trip? Check special fishing regulations for Hu54m Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Presque Isle County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Hu54m Lake | A | 38.7 ft | - | - |
| 2 | Hu53 Lake | A | 42.7 ft | - | - |
| 3 | Csmi 2017 Station Hb1 Lake | A | 32 ft | - | - |
| 4 | Hu61 Lake | A | 37.7 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.