Eagle Lake
Hubbard County, Minnesota424 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Eagle Lake. Here is what has been measured.
- Mesotrophic
- Impaired · Mercury
- zebra mussel
- 77 ft max depth
- Public access
Eagle Lake in Hubbard County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.2 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 77 ft. Surface area: 423.53 acres.
Minnesota DNR's Standard Survey on July 18, 2022 caught 4.67 walleye per gill net at Eagle Lake. DNR survey details →
Eagle Lake is a 424-acre mesotrophic lake in Hubbard County, Minnesota with a maximum depth of 77 feet (21-foot average). Overall water quality is improving over recent sampling years. The lake supports 16 documented fish species including black crappie, bluegill, and brown bullhead. Public access is available with 2 public boat landings. Compared to the 67 other monitored lakes in Hubbard County, Eagle Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-22. Methodology: how these readings are compared.
What Eagle Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.2 ft of visibility
- Boat launch2 documented ramps
- Fishing16 species recorded
- Ice seasonIce-out around Apr 24
- Deep water77 ft surveyed max depth
Swimming conditions
Readings onlyLow 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. Eagle Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Eagle 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.
Water quality measurements for Eagle Lake
These are the measurements Minnesota PCA publishes for Eagle 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 11.2 ft. Phosphorus 14.5 µg/L. Chlorophyll-a 4.7 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 14.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 4.7µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Eagle 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 Eagle Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was high (199,526 cells/mL) on October 25, 2025.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Minnesota DNR's Standard Survey on July 18, 2022 caught 4.67 walleye per gill net at Eagle Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Eagle 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
14 surveys on file from MN DNR Fisheries. Most recent: 2025-07-28 (Targeted Survey).
14 surveys on file · most recent 2025-07-28 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Black Bullhead | 12.21 | 7–10 in 2007-07-23 | 0.55 lb |
| Yellow Perch | 11.46 | 4–9 in 2022-07-18 | 0.13 lb |
| Spottail Shiner | 8.00 | ||
| Bluegill | 7.45 | 3–9 in 2022-07-18 | 0.27 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
Yellow Perch
Bluegill
From the 2025-07-28 survey
Temperature and dissolved oxygen measurements were collected from the deepest basin in Eagle Lake on July 29th, 2025. This was done to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee, the most sensitive coldwater species present in this…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eagle Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — EagleFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Eagle (1265)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — EagleFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — EaglePublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
77 ft
Average depth
21 ft
Surface area
424 acres
Shoreline
5.7 mi
Littoral zone
39%
Share shallower than 15 ft
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
203 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,434 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Potato Lake (Northwest)Public
- Eagle 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 Eagle Lake
Compare lakeside cabins, hotels, and vacation rentals near Eagle Lake in Hubbard 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 Eagle Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Eagle 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
Stable6 years
Phosphorus
Improving-0.94 µg/L/yr6 years
Chlorophyll-a
Stable-0.06 µg/L/yr6 years
Ice season
Typical ice-out
Apr 24
Earliest Apr 2, 2016 · Latest May 11, 2013
Typical ice-in
Nov 30
Earliest Nov 3, 2003 · Latest Dec 16, 2004
Most recent ice-out
Apr 2
2016
16 observations · Minnesota PCA ice records
EPA Impairment Status
Eagle Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN29-0256-00 · Official waterbody report
Nearby Lakes in Hubbard County
Frequently asked questions about Eagle Lake
Where is Eagle Lake?
- Eagle Lake is a lake in Hubbard County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Eagle Lake?
- Eagle Lake in Hubbard County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 11.2 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 77 ft. Surface area: 423.53 acres.
Is Eagle Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Eagle Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Eagle Lake?
- Eagle Lake has a maximum depth of 77 feet and an average depth of 21 feet. The lake covers 423.53 acres.
What fish are in Eagle Lake?
- Fish species found in Eagle Lake include black crappie, bluegill, brown bullhead, greater redhorse, hybrid sunfish, largemouth bass, northern pike, northern sunfish, pumpkinseed, rock bass, shorthead redhorse, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Eagle Lake is located in Hubbard County, Minnesota.
What did the DNR fisheries survey find at Eagle Lake?
- Minnesota DNR's Standard Survey on July 18, 2022 caught 4.67 walleye per gill net at Eagle Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Eagle 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.
When does Eagle Lake thaw?
- Eagle Lake typically has ice-out around Apr 24. Ice typically forms around Nov 30. The open water season is approximately 220 days.
Does Eagle Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Eagle Lake (clouds, ice, or an off-season gap). The most recent reading was high (199,526 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.
Are there boat ramps on Eagle Lake?
- Eagle Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Potato Lake (Northwest), Eagle Lake. Public access is listed as yes.
Can I fish at Eagle Lake?
- Eagle Lake has 2 documented boat landings 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.
Explore Eagle Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
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Fish species and best lakes in Hubbard County
Species activity outlook by water temperature and season
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Where to stay at Minnesota's top lakes, each with its readings
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Minnesota's cleanest lakes, ranked on agency measurements
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Where this data comes from
95 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA95 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 (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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory
Ice data from Minnesota DNR Climate