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LakeQuality

Eunice Lake

Becker County, Minnesota378 acresView mapDirections

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

Clarity
13.5 ft
Clearer than most
Secchi · sampled 2025
Phosphorus
11 µg/L
Less phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
3.2 µg/L
Less algae than most
Measured by Minnesota PCA
Max depth
30 ft
Bathymetric survey
Area
378 acres
Surface area
Type
Mesotrophic
Trophic class
  • Mesotrophic
  • zebra mussel
  • 30 ft max depth
  • Public access

Eunice Lake in Becker County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 13.5 ft visibility. Phosphorus: 11 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 30 ft. Surface area: 378.45 acres.

Minnesota DNR's Standard Survey on June 14, 2021 caught 0.78 walleye per gill net at Eunice Lake. DNR survey details →

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Eunice Lake is a 378-acre mesotrophic lake in Becker County, Minnesota with a maximum depth of 30 feet. Overall water quality is improving over recent sampling years. The lake supports 17 documented fish species including black bullhead, black crappie, and bluegill. Public access is available. Compared to the 83 other monitored lakes in Becker County, Eunice Lake ranks #36 for water quality.

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

Eunice Lake covers about 380 acres in Becker County. The median ice-out date is April 22, which is when the open-water season begins. If you are planning to stay, you can search lake houses and cabins around Eunice Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.

What Eunice Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water13.5 ft of visibility
  • Fishing17 species recorded
  • Ice seasonIce-out around Apr 22
  • Deep water30 ft surveyed max depth

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 Eunice 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.

Compare swimming lakes near Detroit Lakes →

Get alerts for Eunice Lake →

Water quality measurements for Eunice Lake

These are the measurements Minnesota PCA publishes for Eunice Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Good clarity, visible to about 13.5 ft. Phosphorus 11 µg/L. Chlorophyll-a 3.2 µg/L. TSI 40.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)13.5ftMeasured, not scored

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

Total phosphorus11µg/LGood
GoodFairPoor
Chlorophyll-a (algae)3.2µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.40Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Eunice Lake

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

DNR fisheries survey

Minnesota DNR's Standard Survey on June 14, 2021 caught 0.78 walleye per gill net at Eunice Lake.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Eunice 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.

DNR Fisheries Survey Summary

12 surveys on file from MN DNR Fisheries. Most recent: 2025-05-22 (Targeted Survey).

12 surveys on file · most recent 2025-05-22 (Targeted Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Bluegill
29.69
1–9 in
2021-06-14
0.21 lb
Yellow Perch
24.77
5–10 in
2021-06-14
0.28 lb
Bluntnose Minnow
17.60

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.

Bluegill

272 fish · 1–9 in · 2021-06-14
56280trophy 10″123456789

Yellow Perch

8 fish · 5–10 in · 2021-06-14
3205678910

From the 2025-05-22 survey

Lake Eunice is a 325-acre, Class-31 lake located in Becker County eleven miles southwest of Detroit Lakes. Lake Eunice is positioned directly southeast of Maud Lake, separated by County Highway 22. The lake's shoreline is highly developed and extensive bulrush and emergent vegetation removal has occurred in the last…

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 Eunice 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

30 ft

Surface area

378 acres

Shoreline

3.4 mi

Littoral zone

49%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

19 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,329 ft

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

Stays via Stay22

Stays near Eunice Lake

Compare lakeside cabins, hotels, and vacation rentals near Eunice Lake in Becker 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 Eunice 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 Minnesota’s top lakes →

Follow Eunice Lake’s readings

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Fish Species

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

Fishing Eunice 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.

zebra mussel

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

  • Water clarity

    Stable

    6 years

  • Phosphorus

    Stable

    +0.14 µg/L/yr6 years

  • Chlorophyll-a

    Improving

    -0.09 µg/L/yr6 years

See year-by-year chart →

Ice season

Typical ice-out

Apr 22

Earliest Mar 23, 2012 · Latest May 10, 2013

Typical ice-in

Nov 22

Earliest Nov 12, 2002 · Latest Dec 4, 2009

Most recent ice-out

May 10

2013

14 observations · Minnesota PCA ice records

Nearby Lakes in Becker County

Frequently asked questions about Eunice Lake

Where is Eunice Lake?

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

What is the water quality of Eunice Lake?

Eunice Lake in Becker County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 13.5 ft visibility. Phosphorus: 11 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 30 ft. Surface area: 378.45 acres.

Measurements on this page ↑

Is Eunice 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 Eunice Lake?

Eunice Lake has a maximum depth of 30 feet. The lake covers 378.45 acres.

What fish are in Eunice Lake?

Fish species found in Eunice Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Eunice Lake is located in Becker County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Eunice Lake?

Minnesota DNR's Standard Survey on June 14, 2021 caught 0.78 walleye per gill net at Eunice Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Eunice 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.

DNR on this page ↑

When does Eunice Lake thaw?

Eunice Lake typically has ice-out around Apr 22. Ice typically forms around Nov 22. The open water season is approximately 214 days.

Can I fish at Eunice Lake?

Public access to Eunice Lake is listed as yes on the lake record. 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.

Where this data comes from

56 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 WaterMNPCA56 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

Ice data from Minnesota DNR Climate