L. Ste. Louise Lake vs Lake St. Louis
Water quality, depth, fish species, and recreation comparison.
L. Ste. Louise Lake has a higher water quality grade (D, Poor) than Lake St. Louis (D, Poor). Both are in St. Charles County, Wisconsin.
Both L. Ste. Louise Lake and Lake St. Louis sit in Missouri. 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: L. Ste. Louise Lake (D) and Lake St. Louis (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.
L. Ste. Louise Lake
Very murky, less than 3.2 ft of visibility.
Lake St. Louis
Very murky, less than 2.7 ft of visibility.
Side-by-Side Metrics
| Metric | L. Ste. Louise Lake | Lake St. Louis |
|---|---|---|
| Overall Grade | D (Poor) | D (Poor) |
| Water Clarity | 3.2 ft | 2.7 ft |
| Phosphorus | 33.5 µg/L | 50 µg/L |
| Chlorophyll-a (Algae) | 17.2 µg/L | 74.3 µg/L |
| Maximum Depth | - | - |
| Surface Area | 70 acres | 563 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
L. Ste. Louise Lake wins on overall water quality with a Grade D versus Lake St. Louis's Grade D. Water clarity: 3.2 ft vs 2.7 ft. For fishing diversity, L. Ste. Louise Lake also leads with 0 species.