Collinwood Lake vs Jennie Lake
Water quality, depth, fish species, and recreation comparison.
Jennie Lake has a higher water quality grade (D, Poor) than Collinwood Lake (F, Very Poor). Both are in Minnesota.
Both Collinwood Lake and Jennie 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: Collinwood Lake (F) and Jennie Lake (D) 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.
Collinwood Lake
Murky, only visible to about 4 ft.
Jennie Lake
Murky, only visible to about 3.9 ft.
Side-by-Side Metrics
| Metric | Collinwood Lake | Jennie Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | D (Poor) |
| Water Clarity | 4 ft | 3.9 ft |
| Phosphorus | 135 µg/L | 62 µg/L |
| Chlorophyll-a (Algae) | 38.6 µg/L | 24.3 µg/L |
| Maximum Depth | 28 ft | 15 ft |
| Surface Area | 639 acres | 1,069 acres |
| Public Access | Yes | Yes |
| Fish Species | 18 | 12 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Jennie Lake wins on overall water quality with a Grade D versus Collinwood Lake's Grade F. Water clarity: 3.9 ft vs 4 ft. For more fish-species variety, Collinwood Lake edges ahead with 18 documented species.
Source: EPA National Aquatic Resource Surveys, 2026.