Island Lake vs Sand Hill Lake
Water quality, depth, fish species, and recreation comparison.
Sand Hill Lake has a higher water quality grade (B, Good) than Island Lake (C, Fair). Both are in Minnesota.
Both Island Lake and Sand Hill Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — Island Lake (C) versus Sand Hill Lake (B). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
With grades 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.
Island Lake
Murky, only visible to about 6.4 ft.
Sand Hill Lake
Moderate clarity, visible to about 6.9 ft.
Side-by-Side Metrics
| Metric | Island Lake | Sand Hill Lake |
|---|---|---|
| Overall Grade | C (Fair) | B (Good) |
| Water Clarity | 6.4 ft | 6.9 ft |
| Phosphorus | 30 µg/L | 26 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 43 ft | 17 ft |
| Surface Area | 616.07 acres | 479.19 acres |
| Public Access | Yes | Yes |
| Fish Species | 1 | 1 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Sand Hill Lake wins on overall water quality with a Grade B versus Island Lake's Grade C. Water clarity: 6.9 ft vs 6.4 ft. For fishing diversity, Sand Hill Lake also leads with 1 species.