Montcalm County Lake Quality
Wisconsin, 9 lakes, average grade B (Good)
Only 9 lakes in Montcalm County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. 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. Whitefish Lake Southeast Basin; Pierson Township (A) is the cleanest in the county.
Quick Answers for Montcalm County
Planning a trip? Check special fishing regulations for Whitefish Lake Southeast Basin; Pierson Township, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Montcalm County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Whitefish Lake Southeast Basin; Pierson Township | A | 16 ft | - | - |
| 2 | Whitefish Lake | A | 16.8 ft | - | - |
| 3 | Crystal Lake Central Basin; Crystal Township | A | 10.5 ft | - | - |
| 4 | Bass Lake | B | 10.8 ft | - | - |
| 5 | Crystal Lake | B | 10 ft | - | - |
| 6 | Newcomb Lake | B | 11 ft | - | - |
| 7 | Newcomb Lake | B | 11 ft | - | - |
| 8 | Muskellunge Lake South Central Basin | C | 9 ft | - | - |
| 9 | Muskellunge Lake | C | 9.5 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.