Lake Lucerne vs South Bay Lake
Water quality, depth, fish species, and recreation comparison.
Lake Lucerne has a higher water quality grade (A, Excellent) than South Bay Lake (B, Good). Both are in Forest County, Wisconsin.
Lake Lucerne and South Bay Lake are both in Wisconsin — 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. These two are within a letter of each other on the rubric — Lake Lucerne (A) versus South Bay Lake (B). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
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.
Lake Lucerne
Crystal clear, you can see 18.5 ft down.
South Bay Lake
Good clarity, visible to about 12 ft.
Side-by-Side Metrics
| Metric | Lake Lucerne | South Bay Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 18.5 ft | 12 ft |
| Phosphorus | 9.3 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 73 ft | 46 ft |
| Surface Area | 1.0K acres | 839 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | oligotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake Lucerne wins on overall water quality with a Grade A versus South Bay Lake's Grade B. Water clarity: 18.5 ft vs 12 ft. For fishing diversity, Lake Lucerne also leads with 0 species.