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LakeQuality

Green Lake East Basin vs Green Lake

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

Green Lake has a higher water quality grade (B, Good) than Green Lake East Basin (B, Good). Both are in Green Lake County, Wisconsin.

Green Lake East Basin and Green 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: Green Lake East Basin (B) and Green 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.

B

Green Lake East Basin

Green Lake County, Wisconsin

Good clarity, visible to about 11.8 ft.

B

Green Lake

Green Lake County, Wisconsin

No clarity data.

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.

MetricGreen Lake East BasinGreen Lake
Overall GradeB (Good)B (Good)
Water Clarity11.8 ftNo data
Phosphorus43 µg/L20.6 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth236 ft-
Surface Area7.9K acres7.3K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicmesotrophic

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

Verdict

Green Lake wins on overall water quality with a Grade B versus Green Lake East Basin's Grade B. For fishing diversity, Green Lake also leads with 0 species.