Missaukee County Lake Quality
Wisconsin, 1 lakes, average grade A (Excellent)
Missaukee County has 1 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.
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. Lake Sapphire (A) is the cleanest in the county.
Quick Answers for Missaukee County
Planning a trip? Check special fishing regulations for Lake Sapphire, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Missaukee County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Lake Sapphire | A | 26.2 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.