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LakeQuality

Flynn Lake vs Inch Lake

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

Inch Lake has a higher water quality grade (B, Good) than Flynn Lake (C, Fair). Both are in Bayfield County, Wisconsin.

Flynn Lake and Inch 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. The grades are close: Flynn Lake (C) and Inch Lake (B) 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.

C

Flynn Lake

Bayfield County, Wisconsin

Moderate clarity, visible to about 9 ft.

B

Inch Lake

Bayfield County, Wisconsin

Good clarity, visible to about 14.1 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.

MetricFlynn LakeInch Lake
Overall GradeC (Fair)B (Good)
Water Clarity9 ft14.1 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area650 acres650 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicoligotrophic

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

Verdict

Inch Lake wins on overall water quality with a Grade B versus Flynn Lake's Grade C. Water clarity: 14.1 ft vs 9 ft. For fishing diversity, Inch Lake also leads with 0 species.