Alcona County Lake Quality
Wisconsin, 8 lakes, average grade B (Good)
Alcona 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-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
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. Hu37 Lake (A) is the cleanest in the county.
Quick Answers for Alcona County
Planning a trip? Check special fishing regulations for Hu37 Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Alcona County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Hu37 Lake | A | 45.1 ft | - | - |
| 2 | Csmi 2017 Station Sr10 Lake | A | 31.2 ft | - | - |
| 3 | Hubbard Lake Central Basin | A | 17 ft | - | - |
| 4 | Hubbard Lake | A | 24.5 ft | - | - |
| 5 | Jewell Lake West Basin | A | 10.5 ft | - | - |
| 6 | Cedar Lake Central Basin; Greenbush Township Section 27 | B | 8.5 ft | - | - |
| 7 | Jewell Lake | B | 10.5 ft | - | - |
| 8 | Cedar Lake | C | 8 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.