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LakeQuality

Whitefish Lake

Polk County, Minnesota243 acresView mapDirections

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

Clarity
3.9 ft
Murkier than most
Secchi · sampled 2025
Phosphorus
44 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Chlorophyll-a
28.2 µg/L
More algae than most
Measured by Minnesota PCA
Max depth
18 ft
Bathymetric survey
Area
243 acres
Surface area
Type
Eutrophic
Trophic class
  • Eutrophic
  • 18 ft max depth
  • Public access

Whitefish Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.9 ft visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 28.2 µg/L. Maximum depth: 18 ft. Surface area: 242.75 acres.

Minnesota DNR's Standard Survey on August 4, 2025 caught 11.33 walleye per gill net at Whitefish Lake. DNR survey details →

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Whitefish Lake is a 243-acre productive, nutrient-rich eutrophic lake in Polk County, Minnesota with a maximum depth of 18 feet. Overall water quality is declining over recent sampling years. The lake supports 15 documented fish species including black bullhead, black crappie, and bluegill. Public access is available with 1 public boat landing. Compared to the 18 other monitored lakes in Polk County, Whitefish Lake ranks #11 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-23. Methodology: how these readings are compared.

What Whitefish Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Fishing15 species recorded

Swimming conditions

Readings only

Algae risk

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 Whitefish 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 Whitefish Lake

These are the measurements Minnesota PCA publishes for Whitefish 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 3.9 ft. Phosphorus 44 µg/L. Chlorophyll-a 28.2 µg/L. TSI 60.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)3.9ftMeasured, not scored

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

Total phosphorus44µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)28.2µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.60Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Whitefish Lake

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

DNR fisheries survey

Minnesota DNR's Standard Survey on August 4, 2025 caught 11.33 walleye per gill net at Whitefish Lake.

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

DNR Fisheries Survey Summary

7 surveys on file from MN DNR Fisheries. Most recent: 2025-08-04 (Standard Survey).

7 surveys on file · most recent 2025-08-04 (Standard Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Black Bullhead
147.54
4–10 in
2025-08-04
0.18 lb
Yellow Perch
20.73
5–6 in
2025-08-04
0.24 lb
Golden Shiner
14.57
Pumpkinseed
13.59
3–5 in
2025-08-04
0.1 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

774 fish · 4–10 in · 2025-08-04
301151045678910

Yellow Perch

90 fish · 5–6 in · 2025-08-04
5930056

Pumpkinseed

32 fish · 3–5 in · 2025-08-04
21110345

From the 2025-08-04 survey

Whitefish Lake is 226-acres with a maximum depth of 18 feet. Blue-green algal blooms are common during most summers and dissolved oxygen can become low during severe winters leading to periodic winterkills. The last known winterkill occurred in the winter of 2017-2018. A standard survey was completed on Whitefish Lake…

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 Whitefish 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

18 ft

Surface area

243 acres

Shoreline

2.8 mi

Littoral zone

75%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

12 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,296 ft

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

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Whitefish 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 Whitefish Lake

Compare lakeside cabins, hotels, and vacation rentals near Whitefish 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Whitefish Lake are listed below.

Top-rated places to stay near Whitefish 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.

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Fish Species

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

Fishing Whitefish Lake

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

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Worsening

    +2.3 µg/L/yr6 years

  • Chlorophyll-a

    Worsening

    +3.28 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Polk County

Frequently asked questions about Whitefish Lake

Where is Whitefish Lake?

Whitefish 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 Whitefish Lake?

Whitefish Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.9 ft visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 28.2 µg/L. Maximum depth: 18 ft. Surface area: 242.75 acres.

Measurements on this page ↑

Is Whitefish 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 Whitefish Lake?

Whitefish Lake has a maximum depth of 18 feet. The lake covers 242.75 acres.

What fish are in Whitefish Lake?

Fish species found in Whitefish Lake include black bullhead, black crappie, bluegill, brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, white sucker, yellow bullhead, yellow perch. Whitefish Lake is located in Polk County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Whitefish Lake?

Minnesota DNR's Standard Survey on August 4, 2025 caught 11.33 walleye per gill net at Whitefish Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Whitefish Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Are there boat ramps on Whitefish Lake?

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

Access on this page ↑

Can I fish at Whitefish Lake?

Whitefish 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

90 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 WaterMNPCA90 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