Is Loon Lake Safe for Swimming?
Loon Lake in Jackson County, Minnesota has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 0.9 ft visibility. Phosphorus: 274 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 0.9 ft |
| Phosphorus | 274 μg/L |
| Maximum Depth | 8 ft |
| Location | Jackson County, Minnesota |
How does Loon Lake compare?
With an overall water quality grade of F, Loon Lake falls below the Minnesota state average of Grade C. It ranks #6 of 7 lakes in Jackson County by water quality score.
Water clarity (Secchi depth) sits at 0.9 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.