Spring Lake vs St. Croix Lake
Water quality, depth, fish species, and recreation comparison.
St. Croix Lake has a higher water quality grade (C, Fair) than Spring Lake (F, Very Poor). Both are in Minnesota.
F
Spring Lake
Dakota County, Minnesota
Very murky, less than 2.1 ft of visibility.
C
St. Croix Lake
Washington County, Minnesota
Moderate clarity, visible to about 8.7 ft.
Side-by-Side Metrics
| Metric | Spring Lake | St. Croix Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | C (Fair) |
| Water Clarity | 2.1 ft | 8.7 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 17 ft | 78 ft |
| Surface Area | 1.5K acres | 8.4K acres |
| Public Access | Yes | No |
| Fish Species | 21 | 36 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
St. Croix Lake wins on overall water quality with a Grade C versus Spring Lake's Grade F. Water clarity: 8.7 ft vs 2.1 ft. For fishing diversity, St. Croix Lake also leads with 36 species.