Birch Lake vs Sucker Lake
Water quality, depth, fish species, and recreation comparison.
Birch Lake has a higher water quality grade (A, Excellent) than Sucker Lake (B, Good). Both are in Minnesota.
Both Birch Lake and Sucker 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. The grades are close: Birch Lake (A) and Sucker Lake (B) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.
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.
Birch Lake
Crystal clear, you can see 15 ft down.
Sucker Lake
Good clarity, visible to about 12 ft.
Side-by-Side Metrics
| Metric | Birch Lake | Sucker Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 15 ft | 12 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 34 ft | 111 ft |
| Surface Area | 836.35 acres | 26.0K acres |
| Public Access | No | 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
Birch Lake wins on overall water quality with a Grade A versus Sucker Lake's Grade B. Water clarity: 15 ft vs 12 ft. For fishing diversity, Birch Lake also leads with 1 species.