Where is Spider Lake?

Spider Lake is a lake in Bayfield County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.

Spider Lake

Not yet rated

125 acres

Spider Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 125 acres.

Wisconsin DNR lists Panfish as common on Spider Lake. DNR survey details →

Area: 125 acres

Where to stay →Safe to swim?

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BHalf Moon Lake8 ft clear · Bayfield CountyView →

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Why Spider 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 Spider 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.

Spider Lake is a 125-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 rated

Elevated nutrients

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Hayward →

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Water quality measurements for Spider 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 Spider Lake

Compare lakeside cabins, hotels, and vacation rentals near Spider 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 Spider Lake

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Wisconsin’s top lakes →

DNR fisheries survey

Wisconsin DNR lists Panfish as common on Spider Lake.

A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Spider Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2019).

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)Northern Pike(Present)Walleye(Present)

Contour map (PDF) →Full WI DNR LakePage →Water quality stations →

Lake Details

Characteristic	Value
Surface Area	125 acres

No bathymetric survey has been published for Spider Lake, so its depth is not documented here.

Fishing Spider Lake

→ Spider Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Bayfield County

NRMullenhoff LakeView →NRMoon LakeView →NRBismarck LakeView →BHalf Moon Lake8 ft clear · MesotrophicView →NRPerch LakeView →NRRoger LakeView →

Frequently asked questions about Spider Lake

Where is Spider Lake?: Spider 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 Spider Lake?: Spider Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 125 acres.
Is Spider Lake safe to swim in?: Not rated for swimming — there is not enough monitoring data to judge this lake. Spider Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What did the DNR fisheries survey find at Spider Lake?: Wisconsin DNR lists Panfish as common on Spider Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Spider Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.