Green Lake
Allegan County, Michigan295 acresView mapDirections
EGLE publishes the water-quality measurements for Green Lake. Here is what has been measured.
- 60 ft max depth
- Public access
- Limited data
Green Lake in Allegan County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 8 ft visibility. Maximum depth: 60 ft. Surface area: 295.2 acres.
Free interactive depth-contour map of Green Lake, reaching a maximum surveyed depth of 60 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Green Lake is a 295-acre lake in Allegan County, Michigan with a maximum depth of 60 feet. Overall water quality is declining over recent sampling years. The lake supports 20 documented fish species including Bigmouth shiner, Black crappie, and Blackchin shiner. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-06. Methodology: how these readings are compared.
Green Lake covers about 300 acres in Allegan County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around Green Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Green Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing20 species recorded
- Deep water60 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Green Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Green Lake
These are the measurements EGLE publishes for Green Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 8 ft. TSI 47.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 47 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Green Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
60 ft
Surface area
295 acres
Public access
Yes
Listed by EGLE
Recreation & Access
- Green LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Green Lake
Compare lakeside cabins, hotels, and vacation rentals near Green Lake in Allegan County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Green Lake
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Follow Green Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Green Lake
Water quality readings over time
2 seasons of samples on record (2021–2022). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Green Lake under Clean Water Act (NPDES) discharge permits.
- Kent County Road CommissionCaledonia · 4.8 mi away · NPDES MIG080050
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Allegan County
Frequently asked questions about Green Lake
Where is Green Lake?
- Green Lake is a lake in Allegan County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Green Lake?
- Green Lake in Allegan County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 8 ft visibility. Maximum depth: 60 ft. Surface area: 295.2 acres.
Is Green Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Green Lake?
- Green Lake has a maximum depth of 60 feet. The lake covers 295.2 acres.
What fish are in Green Lake?
- Fish species found in Green Lake include Bigmouth shiner, Black crappie, Blackchin shiner, Bluegill, Green sunfish, Hornyhead chub, Iowa darter, Johnny darter, Lake herring, Largemouth bass, Northern longear sunfish, Pumpkinseed, Rock bass, Sand shiner, Spotfin shiner, Striped shiner, Warmouth, White sucker, Yellow bullhead, Yellow perch. Green Lake is located in Allegan County, Michigan.
Are there boat ramps on Green Lake?
- Green Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Green Lake. Public access is listed as yes.
Can I fish at Green Lake?
- Green Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
Explore Green Lake across LakeQuality
15.9 mi away · cable-pulled, no boat wake
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Where this data comes from
16 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS16 samples · 2021–2022
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Named boat-access points from the USGS National Boat Ramps inventory