Eagle Lake
Eagle Lake in Hennepin County, Minnesota has a water quality grade of F (Algae-prone). Water clarity: 3 ft visibility. Phosphorus: 58 µg/L. Chlorophyll-a (algae): 32.5 µg/L. Maximum depth: 34 ft. Surface area: 296.2 acres.
Minnesota DNR surveys at Eagle Lake average 7.43 largemouth bass per unit of sampling effort (CPUE) across 15 surveys. The most recent is a Standard Survey dated June 30, 2025. Length samples in the latest survey that recorded them ran 5–15 inches. DNR survey details →
- Clarity
- 3 ft
- Typical in August
- 69°F
- Max depth
- 34 ft
- Area
- 296 acres
- Type
- Eutrophic
- Trend
- ↓ Declining
- Public access
- Yes
- Ice-out
- Mar 29
- Open water
- 248 days
Grade F measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Eagle Lake →
Next lake in Hennepin County
Swipe left or right on this bar to open the next or previous lake.
Eagle Lake is a 296-acre productive, nutrient-rich eutrophic lake in Hennepin County, Minnesota with a maximum depth of 34 feet (11-foot average). Water quality is graded F based on 2 sampling years through 2025. Overall water quality is declining 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 80 other monitored lakes in Hennepin County, Eagle Lake ranks #60 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-24. Grade methodology: LakeQuality methodology.
Watch Eagle Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyAlgae risk
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom
Water Quality Grade: F (Algae-prone)
Very murky, less than 3 ft of visibility. Phosphorus level: 58 µg/L. Chlorophyll-a: 32.5 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | Not graded |
| Phosphorus | 58 µg/L | Poor |
| Chlorophyll-a (Algae) | 32.5 µg/L | Poor |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Eagle Lake
Compare lakeside cabins, hotels, and vacation rentals near Eagle Lake in Hennepin 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 grade measures nutrients and algae, not lodging — cabins and rentals around Eagle Lake are listed below.
Top-rated places to stay near Eagle Lake
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 →
Water Temperature
Eagle Lake typically sits around 69°F at the surface in August. Summer average is about 68°F. Usually warmest in Jul (about 69°F) and coldest in Apr (about 50°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 517 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 (194,089 cells/mL) on April 10, 2026.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Minnesota DNR surveys at Eagle Lake average 7.43 largemouth bass per unit of sampling effort (CPUE) across 15 surveys. The most recent is a Standard Survey dated June 30, 2025. Length samples in the latest survey that recorded them ran 5–15 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Eagle Lake F from EPA Water Quality Portal chemistry, 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
15 surveys on file from MN DNR Fisheries. Most recent: 2025-06-30 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Bluegill | 33.93 | 0.14 lb |
| Black Crappie | 13.03 | 0.17 lb |
| Yellow Perch | 12.68 | 0.1 lb |
| Black Bullhead | 8.25 | 0.34 lb |
| Largemouth Bass | 7.43 | 0.73 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE means more abundant in standardized sampling. This 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
Black Crappie
Yellow Perch
Black Bullhead
From the 2025-06-30 survey
Eagle Lake is a 291-acre lake with a maximum depth of 34 feet. It is located in north central Hennepin County, in the city of Maple Grove. There is a DNR-owned public access on the northeast corner of the lake. Eagle Lake is actively managed for Muskellunge and Walleye, which are stocked to maintain the populations.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eagle Lake. 3 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
- —Fish Stocking History — EagleFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — EaglePublic Water Access Sites · MN DNR LakeFinder
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 34 ft |
| Average Depth | 10.7 ft |
| Surface Area | 296 acres |
| Shoreline Length | 5.1 mi |
| Littoral Zone | 67% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded 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: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.164 m/yr | 6 |
| Phosphorus | ↓ Declining | +3.16 µg/L/yr | 5 |
| Chlorophyll-a | ↓ Declining | +3.12 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (17 observations).
Estimated open water season: 248 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2024-03-04 (2024) | 2018-04-30 (2018) |
| Ice-In | 2018-11-13 (2018) | 2007-01-14 (2007) |
Most recent ice-out: 2026-03-28
EPA Impairment Status
Eagle Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN27-0111-01 · Official waterbody report
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Eagle Lake under Clean Water Act (NPDES) discharge permits.
- Hutchinson Technology IncPlymouth · 0.7 mi away · NPDES MN0066699
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
County Ranking
Ranked #60 of 81 lakes in Hennepin County
Nearby Lakes With Higher Grades
Eagle Lake holds Grade F. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Hennepin County
Frequently asked questions about Eagle Lake
Where is Eagle Lake?
- Eagle Lake is a lake in Hennepin County, Minnesota. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Eagle Lake?
- Eagle Lake in Hennepin County, Minnesota has a water quality grade of F (Algae-prone). Water clarity: 3 ft visibility. Phosphorus: 58 µg/L. Chlorophyll-a (algae): 32.5 µg/L. Maximum depth: 34 ft. Surface area: 296.2 acres.
Is Eagle Lake safe to swim in?
- Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Eagle Lake has a water quality grade of F (Algae-prone). Algae concentration (chlorophyll-a) is 32.5 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Eagle Lake?
- Eagle Lake typically sits around 69°F at the surface in August, from 517 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 34 feet and an average depth of 10.7 feet. The lake covers 296.2 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, muskellunge, northern pike, pumpkinseed, shorthead redhorse, walleye, white sucker, yellow bullhead, yellow perch. Eagle Lake is located in Hennepin County, Minnesota.
What did the DNR fisheries survey find at Eagle Lake?
- Minnesota DNR surveys at Eagle Lake average 7.43 largemouth bass per unit of sampling effort (CPUE) across 15 surveys. The most recent is a Standard Survey dated June 30, 2025. Length samples in the latest survey that recorded them ran 5–15 inches. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Eagle Lake F from EPA Water Quality Portal chemistry, 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.
When does Eagle Lake thaw?
- Eagle Lake typically has ice-out around Mar 29. Ice typically forms around Dec 2. The open water season is approximately 248 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 (194,089 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.
Explore Eagle Lake across LakeQuality
Fish species and top-graded lakes across Minnesota
Fish species and best lakes in Hennepin County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its grade
Lakes in the Crow River Watershed, ranked by water quality
High nutrients, frequent algae, reduced clarity
Minnesota's cleanest and most-polluted lakes, ranked
More Minnesota Lake Rankings
State Parks Near Eagle Lake
Other Grade F Lakes in Minnesota
Eutrophic Lakes in Minnesota
Where this data comes from
491 measurements from 4 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
MNPCA491 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- Phosphorus by Colorimetry
- Analysis of Chlorophyll in Periphyton and Plankton
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (4)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate