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LakeQuality

L St Germain Lk Site K @ S. Bay Lake vs Little St Germain Lake

Water quality, depth, fish species, and recreation comparison.

L St Germain Lk Site K @ S. Bay Lake has a higher water quality grade (B, Good) than Little St Germain Lake (C, Fair). Both are in Vilas County, Wisconsin.

Both L St Germain Lk Site K @ S. Bay Lake and Little St Germain Lake sit in Wisconsin. 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. These two are within a letter of each other on the rubric — L St Germain Lk Site K @ S. Bay Lake (B) versus Little St Germain Lake (C). 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.

B

No clarity data.

C

Little St Germain Lake

Vilas County, Wisconsin

Murky, only visible to about 3.5 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricL St Germain Lk Site K @ S. Bay LakeLittle St Germain Lake
Overall GradeB (Good)C (Fair)
Water ClarityNo data3.5 ft
Phosphorus27 µg/L45.4 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth53 ft53 ft
Surface Area972 acres972 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

L St Germain Lk Site K @ S. Bay Lake wins on overall water quality with a Grade B versus Little St Germain Lake's Grade C. For fishing diversity, L St Germain Lk Site K @ S. Bay Lake also leads with 0 species.