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LakeQuality

Badger Lake

Polk County, Minnesota256 acresView mapDirections

Minnesota PCA publishes the water-quality measurements for Badger Lake. Here is what has been measured.

Clarity
6.6 ft
Typical for Minnesota
Secchi · sampled 2025
Phosphorus
27 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Chlorophyll-a
7.5 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Max depth
19 ft
Bathymetric survey
Area
256 acres
Surface area
Type
Eutrophic
Trophic class
  • Eutrophic
  • 19 ft max depth
  • Public access

Badger Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6.6 ft visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 7.5 µg/L. Maximum depth: 19 ft. Surface area: 255.67 acres.

Minnesota DNR's Standard Survey on June 6, 2016 caught 1.50 walleye per gill net at Badger Lake. DNR survey details →

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Badger Lake is a 256-acre productive, nutrient-rich eutrophic lake in Polk County, Minnesota with a maximum depth of 19 feet. Water clarity is improving over recent sampling years. The lake supports 9 documented fish species including black bullhead, bluegill, and common carp. Public access is available with 1 public boat landing. Compared to the 18 other monitored lakes in Polk County, Badger Lake ranks #6 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-24. Methodology: how these readings are compared.

What Badger Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Fishing9 species recorded

Swimming conditions

Readings only

Low algae

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. Check local advisories before you swim.

Whether Badger Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Badger Lake

These are the measurements Minnesota PCA publishes for Badger 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 6.6 ft. Phosphorus 27 µg/L. Chlorophyll-a 7.5 µg/L. TSI 51.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)6.6ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus27µg/LGood
GoodFairPoor
Chlorophyll-a (algae)7.5µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.51Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Badger Lake

Answers come straight from the public measurements and survey records on this page.

DNR fisheries survey

Minnesota DNR's Standard Survey on June 6, 2016 caught 1.50 walleye per gill net at Badger Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Badger Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.

DNR Fisheries Survey Summary

5 surveys on file from MN DNR Fisheries. Most recent: 2016-06-06 (Standard Survey).

5 surveys on file · most recent 2016-06-06 (Standard Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Black Bullhead
25.39
3–13 in
2016-06-06
0.16 lb
Yellow Perch
10.96
5–10 in
2016-06-06
0.2 lb
Northern Pike
6.00
8–29 in
2016-06-06
1.47 lb
Bluegill
5.78
2–9 in
2016-06-06
0.28 lb
Brown Bullhead
3.23
6–11 in
2010-06-15
0.29 lb

CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Black Bullhead

229 fish · 3–13 in · 2016-06-06
162810345678910111213

Yellow Perch

7 fish · 5–10 in · 2016-06-06
3205678910

Northern Pike

33 fish · 8–29 in · 2016-06-06
530810121416182022242628

Bluegill

141 fish · 2–9 in · 2016-06-06
53270trophy 10″23456789

From the 2016-06-06 survey

Badger Lake is a marginal fish lake on the northern edge of Erskine, MN. The lake has a history of winter kills and abundant populations of Northern Pike and Black Bullhead. Following winterkills, the lake re-populates with Northern Pike and other fish species by immigration via County Ditch 73 or other channels. Pump…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Badger Lake. 4 reports on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Lake Details

Max depth

19 ft

Surface area

256 acres

Shoreline

3 mi

Littoral zone

100%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

19 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,168 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Badger 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 Badger Lake

Compare lakeside cabins, hotels, and vacation rentals near Badger Lake in Polk County, Minnesota — 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 Badger Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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Fish Species

Click a species to see every lake where it is documented.

Fishing Badger Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Improving

    6 years

  • Phosphorus

    Stable

    -0.71 µg/L/yr6 years

  • Chlorophyll-a

    Worsening

    +3.72 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Polk County

Frequently asked questions about Badger Lake

Where is Badger Lake?

Badger Lake is a lake in Polk County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

What is the water quality of Badger Lake?

Badger Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6.6 ft visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 7.5 µg/L. Maximum depth: 19 ft. Surface area: 255.67 acres.

Measurements on this page ↑

Is Badger Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Badger Lake?

Badger Lake has a maximum depth of 19 feet. The lake covers 255.67 acres.

What fish are in Badger Lake?

Fish species found in Badger Lake include black bullhead, bluegill, common carp, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow perch. Badger Lake is located in Polk County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Badger Lake?

Minnesota DNR's Standard Survey on June 6, 2016 caught 1.50 walleye per gill net at Badger Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Badger Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Are there boat ramps on Badger Lake?

Badger Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Badger Lake. Public access is listed as yes.

Access on this page ↑

Can I fish at Badger Lake?

Badger 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.

Access on this page ↑

Where this data comes from

85 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA85 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)

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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder

Named boat-access points from the USGS National Boat Ramps inventory