Is St. Croix Lake Safe for Swimming?
St. Croix Lake in St. Croix County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 4.4 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 4.4 ft |
| Maximum Depth | 60 ft |
| Location | St. Croix County, Wisconsin |
How does St. Croix Lake compare?
With an overall water quality grade of D, St. Croix Lake falls below the Wisconsin state average of Grade B. It ranks #7 of 7 lakes in St. Croix County by water quality score.
Water clarity (Secchi depth) sits at 4.4 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.