Green Lake
Allegan County, WisconsinLimited DataMesotrophic
Green Lake is a mesotrophic lake in Allegan County, MI. Water quality is graded C based on 1 sampling years through 2022. The lake supports 20 documented fish species including Bigmouth shiner, Black crappie, and Blackchin shiner. Compared to the 11 other monitored lakes in Allegan County, Green Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-09-06. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Green Lake (14-day solunar calendar)
→ Is it safe to eat fish from Green Lake? (mercury & PFAS guide)
→ Green Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #9 of 12 lakes in Allegan County
Cleaner Lakes Within 30 Miles
Green Lake holds Grade C. 2 nearby lakes hold higher grades.
- ACobb Lake Central BasinBarry County · 7.5 mi · Two grade letters higher (C → A)
- ABarlow Lake Central Basin; Yankee Springs Township Sec6Barry County · 6.8 mi · Two grade letters higher (C → A)
Nearby Lakes in Allegan County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Cass County · Clarity: 7 ft
Leelanau County · Clarity: 9.5 ft
Iosco County · Clarity: 5.5 ft
Muskegon County · Clarity: 6.8 ft
Gladwin County · Clarity: 9 ft
Montmorency County · Clarity: 9 ft
Mesotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-09-06
Monitoring stations: 1