Pope County Lake Quality
Wisconsin, 2 lakes, average grade B (Good)
Pope County has 2 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. With an average grade of B, Pope County sits comfortably above the Illinois median.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is One Horse Gap Lake (B); the most-stressed is One Horse Gap Lake (B).
Quick Answers for Pope County
Planning a trip? Check special fishing regulations for One Horse Gap Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Pope County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | One Horse Gap Lake | B | 4 ft | - | 17 µg/L |
| 2 | Glendale Lake | B | 4.8 ft | - | 16 µg/L |
Source: EPA National Aquatic Resource Surveys, 2026.