Is St. Croix Lake Safe for Swimming?
St. Croix Lake in Washington County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 8.7 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 8.7 ft |
| Maximum Depth | 78 ft |
| Location | Washington County, Minnesota |
How does St. Croix Lake compare?
With an overall water quality grade of C, St. Croix Lake matches or beats the Minnesota state average of Grade C. It ranks #19 of 31 lakes in Washington County by water quality score.
Water clarity (Secchi depth) sits at 8.7 feet. That puts the lake in good clarity range, with limited algae interference.