Is Mille Lacs Lake Safe for Swimming?
Mille Lacs Lake in Aitkin County, Minnesota has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 10.5 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 10.5 ft |
| Maximum Depth | 42 ft |
| Location | Aitkin County, Minnesota |
How does Mille Lacs Lake compare?
With an overall water quality grade of B, Mille Lacs Lake matches or beats the Minnesota state average of Grade C. It ranks #17 of 53 lakes in Aitkin County by water quality score.
Water clarity (Secchi depth) sits at 10.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.