Andrew Lake vs Lobster Lake
Water quality, depth, fish species, and recreation comparison.
Andrew Lake reads lower on nutrients and algae than Lobster Lake. Both are in Douglas County, Minnesota.
Both Andrew Lake and Lobster Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. The readings are close: Andrew Lake and Lobster 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.
Andrew Lake
Good clarity, visible to about 13.9 ft.
Lobster Lake
Good clarity, visible to about 13 ft.
Side-by-Side Metrics
| Metric | Andrew Lake | Lobster Lake |
|---|---|---|
| Water Clarity | 13.9 ft Better | 13 ft |
| Phosphorus | 17 µg/L Better | 20.5 µg/L |
| Chlorophyll-a (Algae) | 4 µg/L | 3.6 µg/L Better |
| Maximum Depth | 83 ft Better | 65 ft |
| Surface Area | 923 acres | 1,334 acres |
| Public Access | Yes | Yes |
| Fish Species | 18 | 18 |
| Trophic State | mesotrophic | mesotrophic |
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
Andrew Lake and Lobster Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Andrew Lake: 13.9 ft, Lobster Lake: 13 ft) and what you want from the lake. Andrew Lake matches its peer on species count.
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Source: EPA National Aquatic Resource Surveys, 2026.