Is Lac la Croix Lake Safe for Swimming?
Lac la Croix Lake in St. Louis County, Minnesota has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 2.5 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 2.5 ft |
| Maximum Depth | 30 ft |
| Location | St. Louis County, Minnesota |
How does Lac la Croix Lake compare?
With an overall water quality grade of F, Lac la Croix Lake falls below the Minnesota state average of Grade C. It ranks #207 of 215 lakes in St. Louis County by water quality score.
Water clarity (Secchi depth) sits at 2.5 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.