Amnicon Lake
Douglas County, Wisconsin390 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Amnicon Lake. Here is what has been measured.
- Eutrophic
- Impaired · Cause unknown
- 2 aquatic invasives
- 31 ft max depth
- Public access
Amnicon Lake in Douglas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 23.2 µg/L. Maximum depth: 31 ft. Surface area: 390 acres.
Wisconsin DNR rates Northern Pike as abundant on Amnicon Lake. DNR survey details →
Amnicon Lake is a 390-acre productive, nutrient-rich eutrophic lake in Douglas County, Wisconsin with a maximum depth of 31 feet. Overall water quality is improving over recent sampling years. The lake supports 5 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 1 public boat landing. Compared to the 14 other monitored lakes in Douglas County, Amnicon Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-04-23. Methodology: how these readings are compared.
Amnicon Lake covers about 390 acres in Douglas County. It has one public boat landing. For a place on the water, look through cabin and lake-house rentals near Amnicon Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Amnicon Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing5 species recorded
- Deep water31 ft surveyed max depth
Swimming conditions
Readings onlyRecreation use not supported
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Amnicon Lake is listed impaired under Clean Water Act §303(d) (IR 5) for cause unknown, turbidity. Check local advisories before you swim.
Whether Amnicon Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Amnicon Lake
These are the measurements Wisconsin DNR publishes for Amnicon Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5 ft. Phosphorus 23.2 µg/L. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 23.2µg/L | Good GoodFairPoor |
| 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. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Amnicon Lake
Answers come straight from the public measurements and survey records on this page.
Blue-Green Algae (Cyanobacteria)
There’s no recent EPA CyAN cyanobacteria estimate for Amnicon Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was low (16,144 cells/mL) on May 9, 2026.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Wisconsin DNR rates Northern Pike as abundant on Amnicon Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Amnicon Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. 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. Monitored by volunteers since 1988. 4 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Amnicon Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Amnicon Lake fishery survey, 2024-2025Fisheries Survey · WI DNR (PDF)
Lake Details
Max depth
31 ft
Surface area
390 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Shoreline
5.1 mi
HydroLAKES / HydroSHEDS
Elevation
1,184 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Amnicon LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Amnicon Lake
Compare lakeside cabins, hotels, and vacation rentals near Amnicon Lake in Douglas 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 Amnicon Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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 →
Follow Amnicon Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Amnicon Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: Improving
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving5 years
Phosphorus
Improving-4.35 µg/L/yr6 years
EPA Impairment Status
Amnicon Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
Source: EPA ATTAINS assessment unit WI10008205 · Official waterbody report
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Amnicon Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- School District Of SuperiorSuperior · 4.9 mi away · NPDES WI0035866Recent violation
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.
Nearby Lakes in Douglas County
Frequently asked questions about Amnicon Lake
Where is Amnicon Lake?
- Amnicon Lake is a lake in Douglas County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Amnicon Lake?
- Amnicon Lake in Douglas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 23.2 µg/L. Maximum depth: 31 ft. Surface area: 390 acres.
Is Amnicon Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Amnicon Lake is listed impaired under Clean Water Act §303(d) (IR 5) for cause unknown, turbidity. Check local advisories before you swim.
How deep is Amnicon Lake?
- Amnicon Lake has a maximum depth of 31 feet. The lake covers 390 acres.
What fish are in Amnicon Lake?
- Fish species found in Amnicon Lake include Musky, Panfish, Largemouth Bass, Northern Pike, Walleye. Amnicon Lake is located in Douglas County, Wisconsin.
What did the DNR fisheries survey find at Amnicon Lake?
- Wisconsin DNR rates Northern Pike as abundant on Amnicon Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Amnicon Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Does Amnicon Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Amnicon Lake (clouds, ice, or an off-season gap). The most recent reading was low (16,144 cells/mL). Blue-green algae can appear and clear within days, so check Wisconsin's current advisory before swimming.
Are there boat ramps on Amnicon Lake?
- Amnicon Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Amnicon Lake. Public access is listed as yes.
Can I fish at Amnicon Lake?
- Amnicon 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 Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Amnicon Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
4.8 mi away · 165 ft
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Where this data comes from
69 measurements from 2 monitoring stations, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX69 samples · 2020–2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (2)
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
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory