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?
With an overall water-quality readings of —, Lake St Croix matches or beats the Minnesota state average. It ranks #1 of 1 lakes in Pierce County by water quality score.
Water clarity (Secchi depth) sits at 7.2 feet. That puts the lake in good clarity range, with limited algae interference.
Watch Lake St Croix water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.