Eagle Lake
Sherburne County, Minnesota462 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Eagle Lake. Here is what has been measured.
- Eutrophic
- 2 aquatic invasives
- 18 ft max depth
- Public access
- Limited data
Eagle Lake in Sherburne County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 61.5 µg/L. Chlorophyll-a (algae): 29.5 µg/L. Maximum depth: 18 ft. Surface area: 462.42 acres.
Minnesota DNR's Targeted Survey on June 17, 2021 caught 0.80 northern pike per hour of electrofishing at Eagle Lake. DNR survey details →
Eagle Lake is a 462-acre productive, nutrient-rich eutrophic lake in Sherburne County, Minnesota with a maximum depth of 18 feet (11-foot average). 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 17 other monitored lakes in Sherburne County, Eagle Lake ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-12. Methodology: how these readings are compared.
What Eagle Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing15 species recorded
- Ice seasonIce-out around Apr 6
Swimming conditions
Readings onlyLimited data
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 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.
Very murky, less than 3 ft of visibility. Phosphorus 61.5 µg/L. Chlorophyll-a 29.5 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 61.5µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 29.5µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Eagle Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Eagle Lake typically sits around 69°F at the surface in September. Summer average is about 76°F. Usually warmest in Jul (about 79°F) and coldest in May (about 63°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (63°F) to its warmest (79°F).
Typical surface water temperature by month, from 77 field readings (2010–2025) via the EPA Water Quality Portal. See the full Eagle Lake water temperature breakdown →
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 (794,328 cells/mL) on July 18, 2026.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Minnesota DNR's Targeted Survey on June 17, 2021 caught 0.80 northern pike per hour of electrofishing 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 5 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: 2021-06-17 (Targeted Survey).
7 surveys on file · most recent 2021-06-17 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Yellow Perch | 68.80 | 2–9 in 2020-08-24 | 0.11 lb |
| Black Bullhead | 36.35 | 9–14 in 2020-08-24 | 0.62 lb |
| Bluntnose Minnow | 33.12 | ||
| Bluegill | 30.66 | 2–8 in 2020-08-24 | 0.14 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.
Yellow Perch
Black Bullhead
Bluegill
From the 2021-06-17 survey
A targeted survey of nearshore and littoral fish species in Eagle Lake was conducted beginning on June 17th, 2021 by Index of Biological Integrity (IBI) Program Staff. Sampling sites were evenly spaced around the lake and each was sampled by backpack electrofishing and seining with a 50-foot or 15-foot seine, where…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eagle Lake. 2 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
- —Public Water Access Sites — EaglePublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
18 ft
Average depth
10.7 ft
Surface area
462 acres
Shoreline
4.2 mi
Littoral zone
71%
Share shallower than 15 ft
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
5 sq mi
HydroLAKES / HydroSHEDS
Elevation
915 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- 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 Sherburne 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 Eagle Lake are listed below.
Top-rated places to stay near Eagle 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 →
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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: Worsening
Based on 5 years of monitoring (2020–2025).
Water clarity
Worsening5 years
Ice season
Typical ice-out
Apr 6
Earliest Apr 1, 2007 · Latest Apr 30, 2013
Typical ice-in
Dec 1
Earliest Nov 23, 2007 · Latest Dec 14, 2001
Most recent ice-out
Apr 2
2020
11 observations · Minnesota PCA ice records
Nearby Lakes in Sherburne County
Frequently asked questions about Eagle Lake
Where is Eagle Lake?
- Eagle Lake is a lake in Sherburne 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 Sherburne County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 61.5 µg/L. Chlorophyll-a (algae): 29.5 µg/L. Maximum depth: 18 ft. Surface area: 462.42 acres.
Is Eagle Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Eagle Lake?
- Eagle Lake typically sits around 69°F at the surface in September, from 77 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Eagle Lake?
- Eagle Lake has a maximum depth of 18 feet and an average depth of 10.7 feet. The lake covers 462.42 acres.
What fish are in Eagle Lake?
- Fish species found in Eagle Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow bullhead, yellow perch. Eagle Lake is located in Sherburne County, Minnesota.
What did the DNR fisheries survey find at Eagle Lake?
- Minnesota DNR's Targeted Survey on June 17, 2021 caught 0.80 northern pike per hour of electrofishing 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 5 years of monitoring is declining. 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 6. Ice typically forms around Dec 1. The open water season is approximately 239 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 (794,328 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 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Eagle Lake. Public access is listed as yes.
Can I fish at Eagle Lake?
- Eagle 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.
Explore Eagle Lake across LakeQuality
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Species activity outlook by water temperature and season
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Where this data comes from
102 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
MNPCA102 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by 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
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