Jefferson Lake vs Lake Jefferson
Water quality, depth, fish species, and recreation comparison.
Lake Jefferson has a higher water quality grade (D, Poor) than Jefferson Lake (D, Poor). Both are in Le Sueur County, Minnesota.
Jefferson Lake and Lake Jefferson 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: Jefferson Lake (D) and Lake Jefferson (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.
Jefferson Lake
Very murky, less than 2 ft of visibility.
Lake Jefferson
Murky, only visible to about 4 ft.
Side-by-Side Metrics
| Metric | Jefferson Lake | Lake Jefferson |
|---|---|---|
| Overall Grade | D (Poor) | D (Poor) |
| Water Clarity | 2 ft | 4 ft |
| Phosphorus | 86.5 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | 37 ft |
| Surface Area | 700 acres | 685 acres |
| Public Access | Yes | Yes |
| Fish Species | 0 | 18 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake Jefferson wins on overall water quality with a Grade D versus Jefferson Lake's Grade D. Water clarity: 4 ft vs 2 ft. For fishing diversity, Lake Jefferson also leads with 18 species.