Is Island Lake Safe for Swimming?
Island Lake in Becker County, Minnesota has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 14.6 ft visibility. Phosphorus: 20 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 14.6 ft |
| Phosphorus | 20 μg/L |
| Maximum Depth | 38 ft |
| Location | Becker County, Minnesota |
How does Island Lake compare?
With an overall water quality grade of B, Island Lake matches or beats the Minnesota state average of Grade C. It ranks #42 of 93 lakes in Becker County by water quality score.
Water clarity (Secchi depth) sits at 14.6 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.