Grace Lake vs Mcknight Lake
Water quality, depth, fish species, and recreation comparison.
Grace Lake has a higher water quality grade (D, Poor) than Mcknight Lake (F, Very Poor). Both are in Carver County, Minnesota.
Grace Lake and Mcknight 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 grades are close: Grace Lake (D) and Mcknight Lake (F) 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.
Grace Lake
Very murky, less than 2.6 ft of visibility.
Mcknight Lake
Very murky, less than 2.3 ft of visibility.
Side-by-Side Metrics
| Metric | Grace Lake | Mcknight Lake |
|---|---|---|
| Overall Grade | D (Poor) | F (Very Poor) |
| Water Clarity | 2.6 ft | 2.3 ft |
| Phosphorus | 88 µg/L | 149 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 19 acres | 31 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 1 | 1 |
| Trophic State | eutrophic | hypereutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Grace Lake wins on overall water quality with a Grade D versus Mcknight Lake's Grade F. Water clarity: 2.6 ft vs 2.3 ft. For fishing diversity, Grace Lake also leads with 1 species.