Five Island Lake
Five Island Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 50 acres.
- Area
- 50 acres
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Why Five Island Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Five Island Lake, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Five Island Lake is a 50-acre lake in Bayfield County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Five Island Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Five Island Lake
Compare lakeside cabins, hotels, and vacation rentals near Five Island Lake in Bayfield County, Wisconsin — 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 Five Island Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 50 acres |
No bathymetric survey has been published for Five Island Lake, so its depth is not documented here.
Fishing Five Island Lake
Nearby Lakes in Bayfield County
Frequently asked questions about Five Island Lake
Where is Five Island Lake?
- Five Island Lake is a lake in Bayfield County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Five Island Lake?
- Five Island Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 50 acres.
Is Five Island Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Five Island Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Five Island Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.