Cerro Gordo County Lake Quality
Wisconsin, 4 lakes, average grade D (Poor)
Only 4 lakes in Cerro Gordo 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. On average, Cerro Gordo County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
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. Blue Pit Lake (A) is the cleanest in the county.
Quick Answers for Cerro Gordo County
Planning a trip? Check special fishing regulations for Blue Pit Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Cerro Gordo County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Blue Pit Lake | A | 17.1 ft | - | - |
| 2 | Clear Lake | D | 2.1 ft | - | - |
| 3 | Black Pit Lake | D | 5.6 ft | - | - |
| 4 | Fin And Feather Lake | F | 2.3 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.