Duck Lake
Duck Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.6 ft visibility. Maximum depth: 30 ft. Surface area: 30 acres.
- Clarity
- 1.6 ft
- Max depth
- 30 ft
- Area
- 30 acres
- Public access
- Yes
Next lake in Bayfield County
Why Duck Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: 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 Duck Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
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.
Duck Lake is a 30-acre lake in Bayfield County, Wisconsin with a maximum depth of 30 feet. The lake supports 2 documented fish species including Panfish and Largemouth Bass. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2022-07-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Duck Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.6 ft of visibility. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Duck Lake
Compare lakeside cabins, hotels, and vacation rentals near Duck 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 30 ft |
| Surface Area | 30 acres |
| Public Access | Yes |
Recreation & Access
- Chippewa LakePublic
- Day LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Duck Lake
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2022).
Fish Species (DNR-rated)
Graded lakes near Duck Lake
Duck Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Bayfield County
Frequently asked questions about Duck Lake
What is the water quality grade for Duck Lake?
- Duck Lake in Bayfield County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.6 ft visibility. Maximum depth: 30 ft. Surface area: 30 acres.
Is Duck Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Duck Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Duck Lake?
- Duck Lake has a maximum depth of 30 feet. The lake covers 30 acres.
What fish are in Duck Lake?
- Fish species found in Duck Lake include Panfish, Largemouth Bass. Duck Lake is located in Bayfield County, Wisconsin.
Are there boat ramps on Duck Lake?
- Duck Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Chippewa Lake, Day Lake. Public access is listed as yes.
Explore Duck Lake across LakeGrade
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 2022
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory