Minnie-Belle Lake vs Washington Lake
Water quality, depth, fish species, and recreation comparison.
Minnie-Belle Lake has a higher water quality grade (A, Excellent) than Washington Lake (C, Fair). Both are in Meeker County, Minnesota.
Both Minnie-Belle Lake and Washington 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 meaningfully apart: Minnie-Belle Lake grades a A while Washington 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 — Minnie-Belle 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?
Minnie-Belle Lake
Good clarity, visible to about 14.4 ft.
Washington Lake
Murky, only visible to about 4.5 ft.
Side-by-Side Metrics
| Metric | Minnie-Belle Lake | Washington Lake |
|---|---|---|
| Overall Grade | A (Excellent) | C (Fair) |
| Water Clarity | 14.4 ft | 4.5 ft |
| Phosphorus | 14 µg/L | 32.5 µg/L |
| Chlorophyll-a (Algae) | 3.8 µg/L | 11.6 µg/L |
| Maximum Depth | 49 ft | 17 ft |
| Surface Area | 597 acres | 2,438 acres |
| Public Access | Yes | Yes |
| Fish Species | 14 | 18 |
| Trophic State | mesotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Minnie-Belle Lake wins on overall water quality with a Grade A versus Washington Lake's Grade C. Water clarity: 14.4 ft vs 4.5 ft. For more fish-species variety, Washington Lake edges ahead with 18 documented species.
Source: EPA National Aquatic Resource Surveys, 2026.