Maple Lake vs Osakis Lake
Water quality, depth, fish species, and recreation comparison.
Maple Lake reads lower on nutrients and algae than Osakis Lake. Both are in Todd County, Minnesota.
Maple Lake and Osakis 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: Maple Lake and Osakis 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.
Maple Lake
Murky, only visible to about 6 ft.
Osakis Lake
Good clarity, visible to about 10.5 ft.
Side-by-Side Metrics
| Metric | Maple Lake | Osakis Lake |
|---|---|---|
| Water Clarity | 6 ft | 10.5 ft Better |
| Phosphorus | 51 µg/L Better | 75 µg/L |
| Chlorophyll-a (Algae) | 28 µg/L | 9.6 µg/L Better |
| Maximum Depth | 23 ft | 73 ft Better |
| Surface Area | 388 acres | 6,389 acres |
| Public Access | Yes | Yes |
| Fish Species | 14 | 18 Better |
| Trophic State | eutrophic | eutrophic |
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.
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Verdict
Maple Lake and Osakis Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Maple Lake: 6 ft, Osakis Lake: 10.5 ft) and what you want from the lake. Maple Lake has fewer fish species than Osakis Lake.
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Where to stay near Maple Lake and Osakis Lake
Compare cabins, hotels, and vacation rentals around Maple Lake and Osakis Lake. Both lakes are pinned on the map, so you can see which stays sit nearer the one you pick. Switch to Satellite to see how close each is to the water.
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Source: EPA National Aquatic Resource Surveys, 2026.