Is Devils Lake Safe for Swimming?
Devils Lake in Sauk County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 34.9 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 34.9 ft |
| Maximum Depth | 47 ft |
| Location | Sauk County, Wisconsin |
How does Devils Lake compare?
With an overall water quality grade of A, Devils Lake matches or beats the Wisconsin state average of Grade B. It ranks #2 of 11 lakes in Sauk County by water quality score.
Water clarity (Secchi depth) sits at 34.9 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.