Island Lake
Marquette County, Michigan48 acresView mapDirections
EGLE publishes the water-quality measurements for Island Lake. Here is what has been measured.
- 28 ft max depth
- Public access
- Limited data
Island Lake in Marquette County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 28 ft. Surface area: 47.6 acres.
Free interactive depth-contour map of Island Lake, reaching a maximum surveyed depth of 28 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Island Lake is a 48-acre lake in Marquette County, Michigan with a maximum depth of 28 feet. Overall water quality is improving over recent sampling years. The lake supports 4 documented fish species including Largemouth bass, Pumpkinseed, and Walleye. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-12. Methodology: how these readings are compared.
What Island Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
- Boat launch1 documented ramp
- Fishing4 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Island 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 Island Lake
These are the measurements EGLE publishes for Island Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 12 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12ft | 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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Island Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
28 ft
Surface area
48 acres
Public access
Yes
Listed by EGLE
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.5 mi
HydroLAKES / HydroSHEDS
Elevation
1,486 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Twin LakesPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Island Lake
Compare lakeside cabins, hotels, and vacation rentals near Island Lake in Marquette 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 Island Lake
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Follow Island Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Island Lake
Water quality readings over time
2 seasons of samples on record (2017–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Nearby Lakes in Marquette County
Frequently asked questions about Island Lake
Where is Island Lake?
- Island Lake is a lake in Marquette County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Island Lake?
- Island Lake in Marquette County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 28 ft. Surface area: 47.6 acres.
Is Island Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Island Lake?
- Island Lake has a maximum depth of 28 feet. The lake covers 47.6 acres.
What fish are in Island Lake?
- Fish species found in Island Lake include Largemouth bass, Pumpkinseed, Walleye, Yellow perch. Island Lake is located in Marquette County, Michigan.
Are there boat ramps on Island Lake?
- Island Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Twin Lakes. Public access is listed as yes.
Can I fish at Island Lake?
- Island 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 Island Lake across LakeQuality
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Where this data comes from
16 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS16 samples · 2023
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory