Is Lake St Croix Safe for Swimming?
Lake St Croix in Pierce County, Minnesota has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 7.2 ft visibility. Phosphorus: 32.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 7.2 ft |
| Phosphorus | 32.5 μg/L |
| Maximum Depth | 78 ft |
| Location | Pierce County, Minnesota |
How does Lake St Croix compare?
On nutrient and algae readings, Lake St Croix matches or beats the Minnesota state average. It ranks #1 of 1 lakes in Pierce County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 7.2 feet. That puts the lake in good clarity range, with limited algae interference.
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