Coon-Sandwick Lake vs Shallow Lake
Water quality, depth, fish species, and recreation comparison.
Coon-Sandwick Lake and Shallow Lake read the same on nutrients and algae. Both are in Itasca County, Minnesota.
Coon-Sandwick Lake and Shallow Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The readings are close: Coon-Sandwick Lake and Shallow Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.
With readings this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Coon-Sandwick Lake
Good clarity, visible to about 10.7 ft.
Shallow Lake
Crystal clear, you can see 16.4 ft down.
Side-by-Side Metrics
| Metric | Coon-Sandwick Lake | Shallow Lake |
|---|---|---|
| Water Clarity | 10.7 ft | 16.4 ft Better |
| Phosphorus | 15 µg/L | 9 µg/L Better |
| Chlorophyll-a (Algae) | 3.6 µg/L | 3.2 µg/L Better |
| Maximum Depth | 36 ft | 85 ft Better |
| Surface Area | 594 acres | 539 acres |
| Public Access | Yes | Yes |
| Fish Species | 9 | 12 Better |
| Trophic State | mesotrophic | oligotrophic |
A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.
Swap a lake
Compare Coon-Sandwick Lake or Shallow Lake against a different lake.
Verdict
Both lakes earn the same Grade A. The tiebreakers come down to clarity (Coon-Sandwick Lake: 10.7 ft, Shallow Lake: 16.4 ft) and what you want from the lake. Coon-Sandwick Lake has fewer fish species than Shallow Lake.
Source: EPA National Aquatic Resource Surveys, 2026.