Pike Lake vs Sand Point Lake
Water quality, depth, fish species, and recreation comparison.
Pike Lake has a higher water quality grade (A, Excellent) than Sand Point Lake (C, Fair). Both are in St. Louis County, Minnesota.
Pike Lake and Sand Point 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 grades are meaningfully apart: Pike Lake grades a A while Sand Point Lake grades a C. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.
For a recreational visitor, the wider grade gap is decisive — Pike Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?
Pike Lake
Crystal clear, you can see 18 ft down.
Sand Point Lake
Moderate clarity, visible to about 7.5 ft.
Side-by-Side Metrics
| Metric | Pike Lake | Sand Point Lake |
|---|---|---|
| Overall Grade | A (Excellent) | C (Fair) |
| Water Clarity | 18 ft | 7.5 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 60 ft | 184 ft |
| Surface Area | 488.26 acres | 8.5K acres |
| Public Access | Yes | No |
| Fish Species | 1 | 1 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Pike Lake wins on overall water quality with a Grade A versus Sand Point Lake's Grade C. Water clarity: 18 ft vs 7.5 ft. For fishing diversity, Pike Lake also leads with 1 species.