Fisher Lake
Fisher Lake in Florence County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8.2 ft visibility.
- Clarity
- 8.2 ft
- Trend
- ↑ Improving
- Public access
- Yes
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Why Fisher 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 Fisher 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.
Fisher Lake is a lake in Florence County, Wisconsin. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-10. Grade methodology: LakeQuality 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 Fisher Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 8.2 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Fisher Lake
Compare lakeside cabins, hotels, and vacation rentals near Fisher Lake in Florence 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 Fisher Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Fisher Lake covering fish populations, stocking, water quality, and management. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2021Fisher Lake spring shocking survey, 2021Spring Shocking Survey · WI DNR · 2021 (PDF)
- 2021Patten Lake fisheries summary report, 2021Fisheries Survey · WI DNR · 2021 (PDF)
- 2016Brule River Flowage fisheries summary report, 2016Fisheries Survey · WI DNR · 2016 (PDF)
Recreation & Access
- Fisher LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Fisher Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +4.4 m/yr | 2 |
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Fisher Lake under Clean Water Act (NPDES) discharge permits.
- Florence Utility CommissionFlorence · 0.4 mi away · NPDES WI0022845
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.
Graded lakes near Fisher Lake
Fisher Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Florence County
Frequently asked questions about Fisher Lake
Where is Fisher Lake?
- Fisher Lake is a lake in Florence County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Fisher Lake?
- Fisher Lake in Florence County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8.2 ft visibility.
Is Fisher Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Fisher Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Fisher Lake?
- Fisher Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Fisher Lake. Public access is listed as yes.
Explore Fisher Lake across LakeQuality
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Where this data comes from
2 measurements from 2 monitoring stations, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX2 samples · 2022–2023
Monitoring station identifiers (2)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Named boat-access points from the USGS National Boat Ramps inventory